Home / 83,279.52-124,919.34-20,950

Finding the Fourth Proportional to 83,279.52, 124,919.34 and 20,950

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Solution

The fourth proportional to 83,279.52, 124,919.34 and 20,950 is: 31,425.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,279.52 : 124,919.34 = 20,950 : x
  2. Step 2: Convert to fraction form
    83,279.52/124,919.34 = 20,950/x
  3. Step 3: Cross multiply
    83,279.52x = 124,919.34 × 20,950
  4. Step 4: Simplify right side
    83,279.52x = 2,617,060,173
  5. Step 5: Solve for x
    x = 2,617,060,173/83,279.52
  6. Step 6: Final answer
    x = 31,425.02

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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.