Home / 87,540.98-131,310.33-40,142.60

Finding the Fourth Proportional to 87,540.98, 131,310.33 and 40,142.60

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Solution

The fourth proportional to 87,540.98, 131,310.33 and 40,142.60 is: 60,213.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,540.98 : 131,310.33 = 40,142.60 : x
  2. Step 2: Convert to fraction form
    87,540.98/131,310.33 = 40,142.60/x
  3. Step 3: Cross multiply
    87,540.98x = 131,310.33 × 40,142.60
  4. Step 4: Simplify right side
    87,540.98x = 5,271,138,053.06
  5. Step 5: Solve for x
    x = 5,271,138,053.06/87,540.98
  6. Step 6: Final answer
    x = 60,213.38

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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.