Home / 36,432.78-54,645.09-9,781.38

Finding the Fourth Proportional to 36,432.78, 54,645.09 and 9,781.38

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Solution

The fourth proportional to 36,432.78, 54,645.09 and 9,781.38 is: 14,670.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,432.78 : 54,645.09 = 9,781.38 : x
  2. Step 2: Convert to fraction form
    36,432.78/54,645.09 = 9,781.38/x
  3. Step 3: Cross multiply
    36,432.78x = 54,645.09 × 9,781.38
  4. Step 4: Simplify right side
    36,432.78x = 534,504,390.42
  5. Step 5: Solve for x
    x = 534,504,390.42/36,432.78
  6. Step 6: Final answer
    x = 14,670.97

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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.