We will determine the value as follows:
First, we analyze all the values and see if there is a common ration between the amount of money each year. This is done by subtracting the previus value from the next, that is:
$49 - $41 = $8
$57 - $49 = $8
$65 - $57 = $8
$73 - $65 = $8
So, we can see that each year there is an increase of $8.
