Home / 87,347.62-120,540.10-49,623.94

Finding the Fourth Proportional to 87,347.62, 120,540.10 and 49,623.94

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Solution

The fourth proportional to 87,347.62, 120,540.10 and 49,623.94 is: 68,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,347.62 : 120,540.10 = 49,623.94 : x
  2. Step 2: Convert to fraction form
    87,347.62/120,540.10 = 49,623.94/x
  3. Step 3: Cross multiply
    87,347.62x = 120,540.10 × 49,623.94
  4. Step 4: Simplify right side
    87,347.62x = 5,981,674,689.99
  5. Step 5: Solve for x
    x = 5,981,674,689.99/87,347.62
  6. Step 6: Final answer
    x = 68,481.26

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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.