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Finding the Fourth Proportional to 66,687.62, 100,030.89 and 27,217.05

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Solution

The fourth proportional to 66,687.62, 100,030.89 and 27,217.05 is: 40,825.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,687.62 : 100,030.89 = 27,217.05 : x
  2. Step 2: Convert to fraction form
    66,687.62/100,030.89 = 27,217.05/x
  3. Step 3: Cross multiply
    66,687.62x = 100,030.89 × 27,217.05
  4. Step 4: Simplify right side
    66,687.62x = 2,722,545,734.67
  5. Step 5: Solve for x
    x = 2,722,545,734.67/66,687.62
  6. Step 6: Final answer
    x = 40,825.36

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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.