Home / 83,728.87-115,545.36-45,488.11

Finding the Fourth Proportional to 83,728.87, 115,545.36 and 45,488.11

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Solution

The fourth proportional to 83,728.87, 115,545.36 and 45,488.11 is: 62,773.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,728.87 : 115,545.36 = 45,488.11 : x
  2. Step 2: Convert to fraction form
    83,728.87/115,545.36 = 45,488.11/x
  3. Step 3: Cross multiply
    83,728.87x = 115,545.36 × 45,488.11
  4. Step 4: Simplify right side
    83,728.87x = 5,255,940,045.67
  5. Step 5: Solve for x
    x = 5,255,940,045.67/83,728.87
  6. Step 6: Final answer
    x = 62,773.33

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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.