Home / 87,423.48-120,644.22-49,183.08

Finding the Fourth Proportional to 87,423.48, 120,644.22 and 49,183.08

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Solution

The fourth proportional to 87,423.48, 120,644.22 and 49,183.08 is: 67,872.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.48 : 120,644.22 = 49,183.08 : x
  2. Step 2: Convert to fraction form
    87,423.48/120,644.22 = 49,183.08/x
  3. Step 3: Cross multiply
    87,423.48x = 120,644.22 × 49,183.08
  4. Step 4: Simplify right side
    87,423.48x = 5,933,654,323.80
  5. Step 5: Solve for x
    x = 5,933,654,323.80/87,423.48
  6. Step 6: Final answer
    x = 67,872.55

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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.