Home / 87,449.40-131,022.90-40,606.20

Finding the Fourth Proportional to 87,449.40, 131,022.90 and 40,606.20

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Solution

The fourth proportional to 87,449.40, 131,022.90 and 40,606.20 is: 60,839.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,449.40 : 131,022.90 = 40,606.20 : x
  2. Step 2: Convert to fraction form
    87,449.40/131,022.90 = 40,606.20/x
  3. Step 3: Cross multiply
    87,449.40x = 131,022.90 × 40,606.20
  4. Step 4: Simplify right side
    87,449.40x = 5,320,342,081.98
  5. Step 5: Solve for x
    x = 5,320,342,081.98/87,449.40
  6. Step 6: Final answer
    x = 60,839.09

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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.