Home / 83,710.20-125,306.10-48,545.40

Finding the Fourth Proportional to 83,710.20, 125,306.10 and 48,545.40

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Solution

The fourth proportional to 83,710.20, 125,306.10 and 48,545.40 is: 72,667.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,710.20 : 125,306.10 = 48,545.40 : x
  2. Step 2: Convert to fraction form
    83,710.20/125,306.10 = 48,545.40/x
  3. Step 3: Cross multiply
    83,710.20x = 125,306.10 × 48,545.40
  4. Step 4: Simplify right side
    83,710.20x = 6,083,034,746.94
  5. Step 5: Solve for x
    x = 6,083,034,746.94/83,710.20
  6. Step 6: Final answer
    x = 72,667.78

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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.