Home / 87,600.59-131,421.53-28,431.71

Finding the Fourth Proportional to 87,600.59, 131,421.53 and 28,431.71

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Solution

The fourth proportional to 87,600.59, 131,421.53 and 28,431.71 is: 42,654.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,600.59 : 131,421.53 = 28,431.71 : x
  2. Step 2: Convert to fraction form
    87,600.59/131,421.53 = 28,431.71/x
  3. Step 3: Cross multiply
    87,600.59x = 131,421.53 × 28,431.71
  4. Step 4: Simplify right side
    87,600.59x = 3,736,538,242.69
  5. Step 5: Solve for x
    x = 3,736,538,242.69/87,600.59
  6. Step 6: Final answer
    x = 42,654.26

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1.5x scale

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.