Home / 86,020.97-129,049.89-29,862.86

Finding the Fourth Proportional to 86,020.97, 129,049.89 and 29,862.86

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Solution

The fourth proportional to 86,020.97, 129,049.89 and 29,862.86 is: 44,800.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,020.97 : 129,049.89 = 29,862.86 : x
  2. Step 2: Convert to fraction form
    86,020.97/129,049.89 = 29,862.86/x
  3. Step 3: Cross multiply
    86,020.97x = 129,049.89 × 29,862.86
  4. Step 4: Simplify right side
    86,020.97x = 3,853,798,798.09
  5. Step 5: Solve for x
    x = 3,853,798,798.09/86,020.97
  6. Step 6: Final answer
    x = 44,800.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.