Home / 87,573.59-131,378.85-28,404.66

Finding the Fourth Proportional to 87,573.59, 131,378.85 and 28,404.66

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Solution

The fourth proportional to 87,573.59, 131,378.85 and 28,404.66 is: 42,612.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573.59 : 131,378.85 = 28,404.66 : x
  2. Step 2: Convert to fraction form
    87,573.59/131,378.85 = 28,404.66/x
  3. Step 3: Cross multiply
    87,573.59x = 131,378.85 × 28,404.66
  4. Step 4: Simplify right side
    87,573.59x = 3,731,771,565.44
  5. Step 5: Solve for x
    x = 3,731,771,565.44/87,573.59
  6. Step 6: Final answer
    x = 42,612.98

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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.