Does anyone know of a way I can play a 32 bit game on a 64 bit Win 7 OS?

If it were me, I would just download the game from GOG right here. This will save you any hassles trying to get it to work well. The page says it supports Windows 7/8/10. An added benefit is no CD swapping.

You can run 32-bit games on a 64-bit system, but if tweaking is involved, the GOG download eliminates having to do that.

I second what Marian said. The hassle of getting a 32 bit game to run on a 64 bit system is not minor. It can be done, but it's much easier to get it already tweaked to run on a 64 bit system.

The problem is less with "playing a 32-bit game on a 64-bit OS" than with playing a Windows 95/98 game on a modern NTFS-based computer period. You're not going to find many adventure games from the 1990's that play well on a 64-bit OS, even if they're real 32-bit and not 16-bit.

ScummVM only lists compatibility with "Zork Grand Inquisitor" as "Good" and not "Excellent" or even "Very Good." "Good" means you may have to do some tweaking to get it to work like you want.

GOG uses ScummVM to run Zork GI (they say so on their webpage for Zork GI).
GOG doesn't mind tweaking at all.
If you don't like tweaking, this is not the time to try using ScummVM.

I have the ZGI download from GOG. I bought it several years ago but it runs fine on my Windows 7 computer.

Thanks Jenny and Marian. I guess I will have to pass the ZGI on to my daughter as I gifted her with my games and kept the ones on GoG and Steam. Anyway, I bought the GoG ZGI and runs really well on my Win 7 64 bit. The times they move on.

ScummVM is the best way to play ZGI, either from GOG or from disk.
It is VERY difficult to run the MPEG DVD version natively in Windows 7 x64 (however possible) without ScummVM, and the CD version looks bad comparing to DVD.