Home / 87,571.15-131,375.19-28,402.22

Finding the Fourth Proportional to 87,571.15, 131,375.19 and 28,402.22

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Solution

The fourth proportional to 87,571.15, 131,375.19 and 28,402.22 is: 42,609.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,571.15 : 131,375.19 = 28,402.22 : x
  2. Step 2: Convert to fraction form
    87,571.15/131,375.19 = 28,402.22/x
  3. Step 3: Cross multiply
    87,571.15x = 131,375.19 × 28,402.22
  4. Step 4: Simplify right side
    87,571.15x = 3,731,347,034.49
  5. Step 5: Solve for x
    x = 3,731,347,034.49/87,571.15
  6. Step 6: Final answer
    x = 42,609.32

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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.