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Finding the Fourth Proportional to 66,230.20, 99,345.30 and 16,982.20

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Solution

The fourth proportional to 66,230.20, 99,345.30 and 16,982.20 is: 25,473.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,230.20 : 99,345.30 = 16,982.20 : x
  2. Step 2: Convert to fraction form
    66,230.20/99,345.30 = 16,982.20/x
  3. Step 3: Cross multiply
    66,230.20x = 99,345.30 × 16,982.20
  4. Step 4: Simplify right side
    66,230.20x = 1,687,101,753.66
  5. Step 5: Solve for x
    x = 1,687,101,753.66/66,230.20
  6. Step 6: Final answer
    x = 25,473.30

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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.