Home / 66,744.15-100,115.82-26,781.18

Finding the Fourth Proportional to 66,744.15, 100,115.82 and 26,781.18

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Solution

The fourth proportional to 66,744.15, 100,115.82 and 26,781.18 is: 40,171.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,744.15 : 100,115.82 = 26,781.18 : x
  2. Step 2: Convert to fraction form
    66,744.15/100,115.82 = 26,781.18/x
  3. Step 3: Cross multiply
    66,744.15x = 100,115.82 × 26,781.18
  4. Step 4: Simplify right side
    66,744.15x = 2,681,219,796.27
  5. Step 5: Solve for x
    x = 2,681,219,796.27/66,744.15
  6. Step 6: Final answer
    x = 40,171.61

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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.