Home / 87,423.26-120,643.90-49,182.83

Finding the Fourth Proportional to 87,423.26, 120,643.90 and 49,182.83

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Solution

The fourth proportional to 87,423.26, 120,643.90 and 49,182.83 is: 67,872.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,423.26 : 120,643.90 = 49,182.83 : x
  2. Step 2: Convert to fraction form
    87,423.26/120,643.90 = 49,182.83/x
  3. Step 3: Cross multiply
    87,423.26x = 120,643.90 × 49,182.83
  4. Step 4: Simplify right side
    87,423.26x = 5,933,608,178.32
  5. Step 5: Solve for x
    x = 5,933,608,178.32/87,423.26
  6. Step 6: Final answer
    x = 67,872.19

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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.