Home / 83,176.10-124,764.15-45,721.70

Finding the Fourth Proportional to 83,176.10, 124,764.15 and 45,721.70

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Solution

The fourth proportional to 83,176.10, 124,764.15 and 45,721.70 is: 68,582.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,176.10 : 124,764.15 = 45,721.70 : x
  2. Step 2: Convert to fraction form
    83,176.10/124,764.15 = 45,721.70/x
  3. Step 3: Cross multiply
    83,176.10x = 124,764.15 × 45,721.70
  4. Step 4: Simplify right side
    83,176.10x = 5,704,429,037.06
  5. Step 5: Solve for x
    x = 5,704,429,037.06/83,176.10
  6. Step 6: Final answer
    x = 68,582.55

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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.