Home / 87,385.84-120,591.30-49,145.37

Finding the Fourth Proportional to 87,385.84, 120,591.30 and 49,145.37

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Solution

The fourth proportional to 87,385.84, 120,591.30 and 49,145.37 is: 67,819.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,385.84 : 120,591.30 = 49,145.37 : x
  2. Step 2: Convert to fraction form
    87,385.84/120,591.30 = 49,145.37/x
  3. Step 3: Cross multiply
    87,385.84x = 120,591.30 × 49,145.37
  4. Step 4: Simplify right side
    87,385.84x = 5,926,504,057.28
  5. Step 5: Solve for x
    x = 5,926,504,057.28/87,385.84
  6. Step 6: Final answer
    x = 67,819.96

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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.