Home / 87,046.46-120,124.05-49,320.71

Finding the Fourth Proportional to 87,046.46, 120,124.05 and 49,320.71

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Solution

The fourth proportional to 87,046.46, 120,124.05 and 49,320.71 is: 68,062.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,046.46 : 120,124.05 = 49,320.71 : x
  2. Step 2: Convert to fraction form
    87,046.46/120,124.05 = 49,320.71/x
  3. Step 3: Cross multiply
    87,046.46x = 120,124.05 × 49,320.71
  4. Step 4: Simplify right side
    87,046.46x = 5,924,603,434.08
  5. Step 5: Solve for x
    x = 5,924,603,434.08/87,046.46
  6. Step 6: Final answer
    x = 68,062.54

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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.