Home / 87,540.44-131,331.42-28,376.15

Finding the Fourth Proportional to 87,540.44, 131,331.42 and 28,376.15

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Solution

The fourth proportional to 87,540.44, 131,331.42 and 28,376.15 is: 42,570.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540.44 : 131,331.42 = 28,376.15 : x
  2. Step 2: Convert to fraction form
    87,540.44/131,331.42 = 28,376.15/x
  3. Step 3: Cross multiply
    87,540.44x = 131,331.42 × 28,376.15
  4. Step 4: Simplify right side
    87,540.44x = 3,726,679,416.98
  5. Step 5: Solve for x
    x = 3,726,679,416.98/87,540.44
  6. Step 6: Final answer
    x = 42,570.95

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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.