There are four numbers, choose three of them each time to calculate their average, add another number, calculate four times in this way, and get the following four numbers respectively: 86, 92, 100, 106, then What is the average of the original four numbers?
有四个数，每次选其中三个数算出它们的平均数，再加上另一个数，用这种方法计算了四次，分别得到以下四个数：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>