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Finding the Fourth Proportional to 87,453.60, 131,277.60 and 54,211.20

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Solution

The fourth proportional to 87,453.60, 131,277.60 and 54,211.20 is: 81,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,453.60 : 131,277.60 = 54,211.20 : x
  2. Step 2: Convert to fraction form
    87,453.60/131,277.60 = 54,211.20/x
  3. Step 3: Cross multiply
    87,453.60x = 131,277.60 × 54,211.20
  4. Step 4: Simplify right side
    87,453.60x = 7,116,716,229.12
  5. Step 5: Solve for x
    x = 7,116,716,229.12/87,453.60
  6. Step 6: Final answer
    x = 81,377.05

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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.