The number of people participating in the track and field competition is 54, which is less than the number of people participating in the ball game (1/4). How many people participate in the ball game?
参加田径比赛的人数有54人，比参加球类比赛的人数少(1/4)．参加球类比赛的有多少人？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">54 / (3/4)</gadget>
<output>72</output>

<result>72</result>