Home / 83,117.86-124,640.72-45,666.70

Finding the Fourth Proportional to 83,117.86, 124,640.72 and 45,666.70

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Solution

The fourth proportional to 83,117.86, 124,640.72 and 45,666.70 is: 68,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,117.86 : 124,640.72 = 45,666.70 : x
  2. Step 2: Convert to fraction form
    83,117.86/124,640.72 = 45,666.70/x
  3. Step 3: Cross multiply
    83,117.86x = 124,640.72 × 45,666.70
  4. Step 4: Simplify right side
    83,117.86x = 5,691,930,793.79
  5. Step 5: Solve for x
    x = 5,691,930,793.79/83,117.86
  6. Step 6: Final answer
    x = 68,480.24

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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.