Home / 81,565.85-112,545.25-49,293.90

Finding the Fourth Proportional to 81,565.85, 112,545.25 and 49,293.90

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Solution

The fourth proportional to 81,565.85, 112,545.25 and 49,293.90 is: 68,016.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,565.85 : 112,545.25 = 49,293.90 : x
  2. Step 2: Convert to fraction form
    81,565.85/112,545.25 = 49,293.90/x
  3. Step 3: Cross multiply
    81,565.85x = 112,545.25 × 49,293.90
  4. Step 4: Simplify right side
    81,565.85x = 5,547,794,175.74
  5. Step 5: Solve for x
    x = 5,547,794,175.74/81,565.85
  6. Step 6: Final answer
    x = 68,016.14

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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.