Home / 87,557.10-131,432.85-54,314.70

Finding the Fourth Proportional to 87,557.10, 131,432.85 and 54,314.70

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Solution

The fourth proportional to 87,557.10, 131,432.85 and 54,314.70 is: 81,532.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,557.10 : 131,432.85 = 54,314.70 : x
  2. Step 2: Convert to fraction form
    87,557.10/131,432.85 = 54,314.70/x
  3. Step 3: Cross multiply
    87,557.10x = 131,432.85 × 54,314.70
  4. Step 4: Simplify right side
    87,557.10x = 7,138,735,817.90
  5. Step 5: Solve for x
    x = 7,138,735,817.90/87,557.10
  6. Step 6: Final answer
    x = 81,532.35

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1.5x scale

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.