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Finding the Fourth Proportional to 83,411.16, 115,115.68 and 47,606.60

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Solution

The fourth proportional to 83,411.16, 115,115.68 and 47,606.60 is: 65,701.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,411.16 : 115,115.68 = 47,606.60 : x
  2. Step 2: Convert to fraction form
    83,411.16/115,115.68 = 47,606.60/x
  3. Step 3: Cross multiply
    83,411.16x = 115,115.68 × 47,606.60
  4. Step 4: Simplify right side
    83,411.16x = 5,480,266,131.49
  5. Step 5: Solve for x
    x = 5,480,266,131.49/83,411.16
  6. Step 6: Final answer
    x = 65,701.83

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