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Finding the Fourth Proportional to 87,577.60, 131,463.60 and 54,335.20

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Solution

The fourth proportional to 87,577.60, 131,463.60 and 54,335.20 is: 81,563.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,577.60 : 131,463.60 = 54,335.20 : x
  2. Step 2: Convert to fraction form
    87,577.60/131,463.60 = 54,335.20/x
  3. Step 3: Cross multiply
    87,577.60x = 131,463.60 × 54,335.20
  4. Step 4: Simplify right side
    87,577.60x = 7,143,100,998.72
  5. Step 5: Solve for x
    x = 7,143,100,998.72/87,577.60
  6. Step 6: Final answer
    x = 81,563.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.