The forty-ninths are celebrating their anniversary today.

There are forty-thirds of the total population who are under the age of 18.

The forty-seconds in the race were incredibly fast.

There are forty-sixths in a whole.

The forty-fifths in the parade were dressed in colorful costumes.

The farmers in this region own large north forties.

The top forty songs on the charts are all from different genres.

He bought a bottle of forty-rod whiskey.

He took a sip of the forty-rod whiskey and immediately felt its strong effects.

Forty-five is the name of the Jacobite rising of 1745.