Home / 87,577.40-131,279.70-43,167.80

Finding the Fourth Proportional to 87,577.40, 131,279.70 and 43,167.80

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Solution

The fourth proportional to 87,577.40, 131,279.70 and 43,167.80 is: 64,709.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,577.40 : 131,279.70 = 43,167.80 : x
  2. Step 2: Convert to fraction form
    87,577.40/131,279.70 = 43,167.80/x
  3. Step 3: Cross multiply
    87,577.40x = 131,279.70 × 43,167.80
  4. Step 4: Simplify right side
    87,577.40x = 5,667,055,833.66
  5. Step 5: Solve for x
    x = 5,667,055,833.66/87,577.40
  6. Step 6: Final answer
    x = 64,709.11

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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.