Home / 87,680.17-120,998.61-47,393.91

Finding the Fourth Proportional to 87,680.17, 120,998.61 and 47,393.91

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Solution

The fourth proportional to 87,680.17, 120,998.61 and 47,393.91 is: 65,403.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,680.17 : 120,998.61 = 47,393.91 : x
  2. Step 2: Convert to fraction form
    87,680.17/120,998.61 = 47,393.91/x
  3. Step 3: Cross multiply
    87,680.17x = 120,998.61 × 47,393.91
  4. Step 4: Simplify right side
    87,680.17x = 5,734,597,232.47
  5. Step 5: Solve for x
    x = 5,734,597,232.47/87,680.17
  6. Step 6: Final answer
    x = 65,403.58

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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.