Home / 87,874.94-131,636.64-40,425.14

Finding the Fourth Proportional to 87,874.94, 131,636.64 and 40,425.14

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Solution

The fourth proportional to 87,874.94, 131,636.64 and 40,425.14 is: 60,556.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,874.94 : 131,636.64 = 40,425.14 : x
  2. Step 2: Convert to fraction form
    87,874.94/131,636.64 = 40,425.14/x
  3. Step 3: Cross multiply
    87,874.94x = 131,636.64 × 40,425.14
  4. Step 4: Simplify right side
    87,874.94x = 5,321,429,601.13
  5. Step 5: Solve for x
    x = 5,321,429,601.13/87,874.94
  6. Step 6: Final answer
    x = 60,556.85

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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.