Home / 87,757.25-131,655.70-27,789.38

Finding the Fourth Proportional to 87,757.25, 131,655.70 and 27,789.38

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Solution

The fourth proportional to 87,757.25, 131,655.70 and 27,789.38 is: 41,690.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,757.25 : 131,655.70 = 27,789.38 : x
  2. Step 2: Convert to fraction form
    87,757.25/131,655.70 = 27,789.38/x
  3. Step 3: Cross multiply
    87,757.25x = 131,655.70 × 27,789.38
  4. Step 4: Simplify right side
    87,757.25x = 3,658,630,276.47
  5. Step 5: Solve for x
    x = 3,658,630,276.47/87,757.25
  6. Step 6: Final answer
    x = 41,690.35

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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.