Home / 259,545.72-389,316.15-82,052.75

Finding the Fourth Proportional to 259,545.72, 389,316.15 and 82,052.75

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Solution

The fourth proportional to 259,545.72, 389,316.15 and 82,052.75 is: 123,078.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,545.72 : 389,316.15 = 82,052.75 : x
  2. Step 2: Convert to fraction form
    259,545.72/389,316.15 = 82,052.75/x
  3. Step 3: Cross multiply
    259,545.72x = 389,316.15 × 82,052.75
  4. Step 4: Simplify right side
    259,545.72x = 31,944,459,279.53
  5. Step 5: Solve for x
    x = 31,944,459,279.53/259,545.72
  6. Step 6: Final answer
    x = 123,078.35

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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.