Home / 87,617.32-120,911.94-47,331.07

Finding the Fourth Proportional to 87,617.32, 120,911.94 and 47,331.07

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Solution

The fourth proportional to 87,617.32, 120,911.94 and 47,331.07 is: 65,316.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,617.32 : 120,911.94 = 47,331.07 : x
  2. Step 2: Convert to fraction form
    87,617.32/120,911.94 = 47,331.07/x
  3. Step 3: Cross multiply
    87,617.32x = 120,911.94 × 47,331.07
  4. Step 4: Simplify right side
    87,617.32x = 5,722,891,193.70
  5. Step 5: Solve for x
    x = 5,722,891,193.70/87,617.32
  6. Step 6: Final answer
    x = 65,316.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.