Home / 68,434.38-102,652.11-18,514.89

Finding the Fourth Proportional to 68,434.38, 102,652.11 and 18,514.89

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Solution

The fourth proportional to 68,434.38, 102,652.11 and 18,514.89 is: 27,772.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,434.38 : 102,652.11 = 18,514.89 : x
  2. Step 2: Convert to fraction form
    68,434.38/102,652.11 = 18,514.89/x
  3. Step 3: Cross multiply
    68,434.38x = 102,652.11 × 18,514.89
  4. Step 4: Simplify right side
    68,434.38x = 1,900,592,524.92
  5. Step 5: Solve for x
    x = 1,900,592,524.92/68,434.38
  6. Step 6: Final answer
    x = 27,772.48

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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.