It is told that each time three numbers are selected to calculate their average, and another formula calculated by this method is added, and the following four are respectively 86, 92, 100, 106, then the original four What is the average of the numbers.
有事告诉每次选出其中三个数算出它们的平均数，再加上另一个是用这种方法计算的式子，分别得到了以下四个是86、92、100、106，那么原来四个数的平均数是多少．
<gadget id="calculator">86 + 92 + 100 + 106</gadget>
<output>384</output>

<gadget id="calculator">384 / 2 / 4</gadget>
<output>48</output>

<result>48</result>