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Finding the Fourth Proportional to 87,908.80, 131,863.20 and 46,436.80

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Solution

The fourth proportional to 87,908.80, 131,863.20 and 46,436.80 is: 69,655.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,908.80 : 131,863.20 = 46,436.80 : x
  2. Step 2: Convert to fraction form
    87,908.80/131,863.20 = 46,436.80/x
  3. Step 3: Cross multiply
    87,908.80x = 131,863.20 × 46,436.80
  4. Step 4: Simplify right side
    87,908.80x = 6,123,305,045.76
  5. Step 5: Solve for x
    x = 6,123,305,045.76/87,908.80
  6. Step 6: Final answer
    x = 69,655.20

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