Home / 87,347.61-120,540.11-49,623.93

Finding the Fourth Proportional to 87,347.61, 120,540.11 and 49,623.93

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Solution

The fourth proportional to 87,347.61, 120,540.11 and 49,623.93 is: 68,481.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,347.61 : 120,540.11 = 49,623.93 : x
  2. Step 2: Convert to fraction form
    87,347.61/120,540.11 = 49,623.93/x
  3. Step 3: Cross multiply
    87,347.61x = 120,540.11 × 49,623.93
  4. Step 4: Simplify right side
    87,347.61x = 5,981,673,980.83
  5. Step 5: Solve for x
    x = 5,981,673,980.83/87,347.61
  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.