Home / 87,755.13-131,646.39-28,576.87

Finding the Fourth Proportional to 87,755.13, 131,646.39 and 28,576.87

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Solution

The fourth proportional to 87,755.13, 131,646.39 and 28,576.87 is: 42,869.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,755.13 : 131,646.39 = 28,576.87 : x
  2. Step 2: Convert to fraction form
    87,755.13/131,646.39 = 28,576.87/x
  3. Step 3: Cross multiply
    87,755.13x = 131,646.39 × 28,576.87
  4. Step 4: Simplify right side
    87,755.13x = 3,762,041,773.00
  5. Step 5: Solve for x
    x = 3,762,041,773.00/87,755.13
  6. Step 6: Final answer
    x = 42,869.76

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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.