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Finding the Fourth Proportional to 66,700.29, 100,084.92 and 29,286.63

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Solution

The fourth proportional to 66,700.29, 100,084.92 and 29,286.63 is: 43,945.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,700.29 : 100,084.92 = 29,286.63 : x
  2. Step 2: Convert to fraction form
    66,700.29/100,084.92 = 29,286.63/x
  3. Step 3: Cross multiply
    66,700.29x = 100,084.92 × 29,286.63
  4. Step 4: Simplify right side
    66,700.29x = 2,931,150,020.62
  5. Step 5: Solve for x
    x = 2,931,150,020.62/66,700.29
  6. Step 6: Final answer
    x = 43,945.09

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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.