Home / 87,546.80-131,125.80-67,761.20

Finding the Fourth Proportional to 87,546.80, 131,125.80 and 67,761.20

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Solution

The fourth proportional to 87,546.80, 131,125.80 and 67,761.20 is: 101,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,546.80 : 131,125.80 = 67,761.20 : x
  2. Step 2: Convert to fraction form
    87,546.80/131,125.80 = 67,761.20/x
  3. Step 3: Cross multiply
    87,546.80x = 131,125.80 × 67,761.20
  4. Step 4: Simplify right side
    87,546.80x = 8,885,241,558.96
  5. Step 5: Solve for x
    x = 8,885,241,558.96/87,546.80
  6. Step 6: Final answer
    x = 101,491.33

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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.