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Finding the Fourth Proportional to 41,152.80, 61,729.20 and 13,453.60

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Solution

The fourth proportional to 41,152.80, 61,729.20 and 13,453.60 is: 20,180.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    41,152.80 : 61,729.20 = 13,453.60 : x
  2. Step 2: Convert to fraction form
    41,152.80/61,729.20 = 13,453.60/x
  3. Step 3: Cross multiply
    41,152.80x = 61,729.20 × 13,453.60
  4. Step 4: Simplify right side
    41,152.80x = 830,479,965.12
  5. Step 5: Solve for x
    x = 830,479,965.12/41,152.80
  6. Step 6: Final answer
    x = 20,180.40

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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.