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Finding the Fourth Proportional to 66,808, 100,217.92 and 17,560

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Solution

The fourth proportional to 66,808, 100,217.92 and 17,560 is: 26,341.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,808 : 100,217.92 = 17,560 : x
  2. Step 2: Convert to fraction form
    66,808/100,217.92 = 17,560/x
  3. Step 3: Cross multiply
    66,808x = 100,217.92 × 17,560
  4. Step 4: Simplify right side
    66,808x = 1,759,826,675.20
  5. Step 5: Solve for x
    x = 1,759,826,675.20/66,808
  6. Step 6: Final answer
    x = 26,341.56

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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.