Home / 87,126.84-120,233.97-49,398.66

Finding the Fourth Proportional to 87,126.84, 120,233.97 and 49,398.66

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Solution

The fourth proportional to 87,126.84, 120,233.97 and 49,398.66 is: 68,169.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,126.84 : 120,233.97 = 49,398.66 : x
  2. Step 2: Convert to fraction form
    87,126.84/120,233.97 = 49,398.66/x
  3. Step 3: Cross multiply
    87,126.84x = 120,233.97 × 49,398.66
  4. Step 4: Simplify right side
    87,126.84x = 5,939,397,004.48
  5. Step 5: Solve for x
    x = 5,939,397,004.48/87,126.84
  6. Step 6: Final answer
    x = 68,169.54

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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.