Home / 87,756.26-131,634.27-28,591.83

Finding the Fourth Proportional to 87,756.26, 131,634.27 and 28,591.83

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Solution

The fourth proportional to 87,756.26, 131,634.27 and 28,591.83 is: 42,887.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,756.26 : 131,634.27 = 28,591.83 : x
  2. Step 2: Convert to fraction form
    87,756.26/131,634.27 = 28,591.83/x
  3. Step 3: Cross multiply
    87,756.26x = 131,634.27 × 28,591.83
  4. Step 4: Simplify right side
    87,756.26x = 3,763,664,670.01
  5. Step 5: Solve for x
    x = 3,763,664,670.01/87,756.26
  6. Step 6: Final answer
    x = 42,887.71

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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.