There are 6 numbers lined up, and their average is 27. It is known that the average of the first 4 numbers is 23, and the average of the last 3 numbers is 34. What is the fourth number?
有6个数排成一行，它们的平均数是27，已知前4个数的平均数是23，后3个数的平均数34，第4个数是多少．
<gadget id="calculator">23 * 4</gadget>
<output>92</output>

<gadget id="calculator">34 * 3</gadget>
<output>102</output>

<gadget id="calculator">27 * 6</gadget>
<output>162</output>

<gadget id="calculator">102 - 162</gadget>
<output>-60</output>

<gadget id="calculator">92 + (-60)</gadget>
<output>32</output>

<result>32</result>