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Finding the Fourth Proportional to 91,792.33, 137,657.32 and 31,806.81

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Solution

The fourth proportional to 91,792.33, 137,657.32 and 31,806.81 is: 47,699.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,792.33 : 137,657.32 = 31,806.81 : x
  2. Step 2: Convert to fraction form
    91,792.33/137,657.32 = 31,806.81/x
  3. Step 3: Cross multiply
    91,792.33x = 137,657.32 × 31,806.81
  4. Step 4: Simplify right side
    91,792.33x = 4,378,440,265.65
  5. Step 5: Solve for x
    x = 4,378,440,265.65/91,792.33
  6. Step 6: Final answer
    x = 47,699.41

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