Home / 87,546.14-131,340-28,381.85

Finding the Fourth Proportional to 87,546.14, 131,340 and 28,381.85

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Solution

The fourth proportional to 87,546.14, 131,340 and 28,381.85 is: 42,579.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,546.14 : 131,340 = 28,381.85 : x
  2. Step 2: Convert to fraction form
    87,546.14/131,340 = 28,381.85/x
  3. Step 3: Cross multiply
    87,546.14x = 131,340 × 28,381.85
  4. Step 4: Simplify right side
    87,546.14x = 3,727,672,179
  5. Step 5: Solve for x
    x = 3,727,672,179/87,546.14
  6. Step 6: Final answer
    x = 42,579.51

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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.