Home / 87,997.43-131,777.45-80,531.56

Finding the Fourth Proportional to 87,997.43, 131,777.45 and 80,531.56

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Solution

The fourth proportional to 87,997.43, 131,777.45 and 80,531.56 is: 120,597.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,997.43 : 131,777.45 = 80,531.56 : x
  2. Step 2: Convert to fraction form
    87,997.43/131,777.45 = 80,531.56/x
  3. Step 3: Cross multiply
    87,997.43x = 131,777.45 × 80,531.56
  4. Step 4: Simplify right side
    87,997.43x = 10,612,242,889.22
  5. Step 5: Solve for x
    x = 10,612,242,889.22/87,997.43
  6. Step 6: Final answer
    x = 120,597.19

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1.5x scale

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.