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Finding the Fourth Proportional to 66,944, 100,422.72 and 17,696

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Solution

The fourth proportional to 66,944, 100,422.72 and 17,696 is: 26,545.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,944 : 100,422.72 = 17,696 : x
  2. Step 2: Convert to fraction form
    66,944/100,422.72 = 17,696/x
  3. Step 3: Cross multiply
    66,944x = 100,422.72 × 17,696
  4. Step 4: Simplify right side
    66,944x = 1,777,080,453.12
  5. Step 5: Solve for x
    x = 1,777,080,453.12/66,944
  6. Step 6: Final answer
    x = 26,545.78

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.