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Finding the Fourth Proportional to 66,225.60, 99,304.20 and 19,472.40

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Solution

The fourth proportional to 66,225.60, 99,304.20 and 19,472.40 is: 29,198.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,225.60 : 99,304.20 = 19,472.40 : x
  2. Step 2: Convert to fraction form
    66,225.60/99,304.20 = 19,472.40/x
  3. Step 3: Cross multiply
    66,225.60x = 99,304.20 × 19,472.40
  4. Step 4: Simplify right side
    66,225.60x = 1,933,691,104.08
  5. Step 5: Solve for x
    x = 1,933,691,104.08/66,225.60
  6. Step 6: Final answer
    x = 29,198.54

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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.