Home / 87,626.15-131,426.87-28,462.53

Finding the Fourth Proportional to 87,626.15, 131,426.87 and 28,462.53

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Solution

The fourth proportional to 87,626.15, 131,426.87 and 28,462.53 is: 42,689.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,626.15 : 131,426.87 = 28,462.53 : x
  2. Step 2: Convert to fraction form
    87,626.15/131,426.87 = 28,462.53/x
  3. Step 3: Cross multiply
    87,626.15x = 131,426.87 × 28,462.53
  4. Step 4: Simplify right side
    87,626.15x = 3,740,741,087.87
  5. Step 5: Solve for x
    x = 3,740,741,087.87/87,626.15
  6. Step 6: Final answer
    x = 42,689.78

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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.