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Finding the Fourth Proportional to 66,854.88, 100,245.33 and 27,439.74

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Solution

The fourth proportional to 66,854.88, 100,245.33 and 27,439.74 is: 41,144.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,854.88 : 100,245.33 = 27,439.74 : x
  2. Step 2: Convert to fraction form
    66,854.88/100,245.33 = 27,439.74/x
  3. Step 3: Cross multiply
    66,854.88x = 100,245.33 × 27,439.74
  4. Step 4: Simplify right side
    66,854.88x = 2,750,705,791.41
  5. Step 5: Solve for x
    x = 2,750,705,791.41/66,854.88
  6. Step 6: Final answer
    x = 41,144.43

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1.5x scale

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.