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Finding the Fourth Proportional to 80,672.52, 120,897.80 and 41,146.42

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Solution

The fourth proportional to 80,672.52, 120,897.80 and 41,146.42 is: 61,663.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,672.52 : 120,897.80 = 41,146.42 : x
  2. Step 2: Convert to fraction form
    80,672.52/120,897.80 = 41,146.42/x
  3. Step 3: Cross multiply
    80,672.52x = 120,897.80 × 41,146.42
  4. Step 4: Simplify right side
    80,672.52x = 4,974,511,655.88
  5. Step 5: Solve for x
    x = 4,974,511,655.88/80,672.52
  6. Step 6: Final answer
    x = 61,663.03

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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.