Home / 87,600.40-131,249.40-40,757.20

Finding the Fourth Proportional to 87,600.40, 131,249.40 and 40,757.20

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Solution

The fourth proportional to 87,600.40, 131,249.40 and 40,757.20 is: 61,065.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,600.40 : 131,249.40 = 40,757.20 : x
  2. Step 2: Convert to fraction form
    87,600.40/131,249.40 = 40,757.20/x
  3. Step 3: Cross multiply
    87,600.40x = 131,249.40 × 40,757.20
  4. Step 4: Simplify right side
    87,600.40x = 5,349,358,045.68
  5. Step 5: Solve for x
    x = 5,349,358,045.68/87,600.40
  6. Step 6: Final answer
    x = 61,065.45

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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.