Home / 86,123.25-129,187.29-23,793.75

Finding the Fourth Proportional to 86,123.25, 129,187.29 and 23,793.75

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Solution

The fourth proportional to 86,123.25, 129,187.29 and 23,793.75 is: 35,691.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,123.25 : 129,187.29 = 23,793.75 : x
  2. Step 2: Convert to fraction form
    86,123.25/129,187.29 = 23,793.75/x
  3. Step 3: Cross multiply
    86,123.25x = 129,187.29 × 23,793.75
  4. Step 4: Simplify right side
    86,123.25x = 3,073,850,081.44
  5. Step 5: Solve for x
    x = 3,073,850,081.44/86,123.25
  6. Step 6: Final answer
    x = 35,691.29

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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.