Is it possible to host multiple wordpress blogs on my godaddy account under the same domain?

I have 4 wordpress blogs that I would like to host under my godaddy account. I currently have one up, but I can’t figure out a way to have the 2nd blog up under the same domain name. I would like to have them up something like this:

http://www.mydomainname.com/wordpress1
http://www.mydomainname.com/wordpress2
http://www.mydomainname.com/wordpress3
http://www.mydomainname.com/wordpress4

does anyone know how to do this?

Thank you in advance for your help!