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Finding the Fourth Proportional to 66,812, 100,223.92 and 17,564

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Solution

The fourth proportional to 66,812, 100,223.92 and 17,564 is: 26,347.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,812 : 100,223.92 = 17,564 : x
  2. Step 2: Convert to fraction form
    66,812/100,223.92 = 17,564/x
  3. Step 3: Cross multiply
    66,812x = 100,223.92 × 17,564
  4. Step 4: Simplify right side
    66,812x = 1,760,332,930.88
  5. Step 5: Solve for x
    x = 1,760,332,930.88/66,812
  6. Step 6: Final answer
    x = 26,347.56

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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.