Home / 87,412.38-131,082.40-27,420.84

Finding the Fourth Proportional to 87,412.38, 131,082.40 and 27,420.84

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Solution

The fourth proportional to 87,412.38, 131,082.40 and 27,420.84 is: 41,119.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,412.38 : 131,082.40 = 27,420.84 : x
  2. Step 2: Convert to fraction form
    87,412.38/131,082.40 = 27,420.84/x
  3. Step 3: Cross multiply
    87,412.38x = 131,082.40 × 27,420.84
  4. Step 4: Simplify right side
    87,412.38x = 3,594,389,517.22
  5. Step 5: Solve for x
    x = 3,594,389,517.22/87,412.38
  6. Step 6: Final answer
    x = 41,119.91

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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.