Home / 87,573.41-131,378.57-28,404.48

Finding the Fourth Proportional to 87,573.41, 131,378.57 and 28,404.48

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Solution

The fourth proportional to 87,573.41, 131,378.57 and 28,404.48 is: 42,612.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,573.41 : 131,378.57 = 28,404.48 : x
  2. Step 2: Convert to fraction form
    87,573.41/131,378.57 = 28,404.48/x
  3. Step 3: Cross multiply
    87,573.41x = 131,378.57 × 28,404.48
  4. Step 4: Simplify right side
    87,573.41x = 3,731,739,821.97
  5. Step 5: Solve for x
    x = 3,731,739,821.97/87,573.41
  6. Step 6: Final answer
    x = 42,612.71

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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.