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Finding the Fourth Proportional to 66,672.30, 100,008.52 and 27,229.40

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Solution

The fourth proportional to 66,672.30, 100,008.52 and 27,229.40 is: 40,844.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,672.30 : 100,008.52 = 27,229.40 : x
  2. Step 2: Convert to fraction form
    66,672.30/100,008.52 = 27,229.40/x
  3. Step 3: Cross multiply
    66,672.30x = 100,008.52 × 27,229.40
  4. Step 4: Simplify right side
    66,672.30x = 2,723,171,994.49
  5. Step 5: Solve for x
    x = 2,723,171,994.49/66,672.30
  6. Step 6: Final answer
    x = 40,844.13

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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.