Home / 87,573.28-131,378.38-28,404.35

Finding the Fourth Proportional to 87,573.28, 131,378.38 and 28,404.35

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Solution

The fourth proportional to 87,573.28, 131,378.38 and 28,404.35 is: 42,612.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573.28 : 131,378.38 = 28,404.35 : x
  2. Step 2: Convert to fraction form
    87,573.28/131,378.38 = 28,404.35/x
  3. Step 3: Cross multiply
    87,573.28x = 131,378.38 × 28,404.35
  4. Step 4: Simplify right side
    87,573.28x = 3,731,717,487.95
  5. Step 5: Solve for x
    x = 3,731,717,487.95/87,573.28
  6. Step 6: Final answer
    x = 42,612.51

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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.