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Finding the Fourth Proportional to 83,876.92, 115,793.03 and 64,713.63

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Solution

The fourth proportional to 83,876.92, 115,793.03 and 64,713.63 is: 89,337.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,876.92 : 115,793.03 = 64,713.63 : x
  2. Step 2: Convert to fraction form
    83,876.92/115,793.03 = 64,713.63/x
  3. Step 3: Cross multiply
    83,876.92x = 115,793.03 × 64,713.63
  4. Step 4: Simplify right side
    83,876.92x = 7,493,387,805.00
  5. Step 5: Solve for x
    x = 7,493,387,805.00/83,876.92
  6. Step 6: Final answer
    x = 89,337.90

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