If you want a similar relative tuning, you can go with DGBE and use the highest strings of a six string guitar set.
This is also baritone ukulele tuning; you don't get the same exact chords, as this is a fifth above the standard tuning of the other ukuleles. But you do get the same chord shapes.
If you're trying to get to GCEA, I'm not sure how you get there, as I haven't tried to play in it on my tenor guitars. Maybe someone has made custom strings? The closest tuning I use is ADGC with the middle four strings of a six string set, and you'd have to go pretty floppy on the strings from there to get to GCEA, it probably won't sound great.