Home / 83,514.38-125,278.85-21,184.88

Finding the Fourth Proportional to 83,514.38, 125,278.85 and 21,184.88

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Solution

The fourth proportional to 83,514.38, 125,278.85 and 21,184.88 is: 31,779.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,514.38 : 125,278.85 = 21,184.88 : x
  2. Step 2: Convert to fraction form
    83,514.38/125,278.85 = 21,184.88/x
  3. Step 3: Cross multiply
    83,514.38x = 125,278.85 × 21,184.88
  4. Step 4: Simplify right side
    83,514.38x = 2,654,016,830.36
  5. Step 5: Solve for x
    x = 2,654,016,830.36/83,514.38
  6. Step 6: Final answer
    x = 31,779.16

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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.