Home / 81,545.04-112,426.92-54,691.92

Finding the Fourth Proportional to 81,545.04, 112,426.92 and 54,691.92

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Solution

The fourth proportional to 81,545.04, 112,426.92 and 54,691.92 is: 75,404.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.04 : 112,426.92 = 54,691.92 : x
  2. Step 2: Convert to fraction form
    81,545.04/112,426.92 = 54,691.92/x
  3. Step 3: Cross multiply
    81,545.04x = 112,426.92 × 54,691.92
  4. Step 4: Simplify right side
    81,545.04x = 6,148,844,114.49
  5. Step 5: Solve for x
    x = 6,148,844,114.49/81,545.04
  6. Step 6: Final answer
    x = 75,404.27

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1.5x scale

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.