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Finding the Fourth Proportional to 72,613.88, 108,855.20 and 50,437.70

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Solution

The fourth proportional to 72,613.88, 108,855.20 and 50,437.70 is: 75,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,613.88 : 108,855.20 = 50,437.70 : x
  2. Step 2: Convert to fraction form
    72,613.88/108,855.20 = 50,437.70/x
  3. Step 3: Cross multiply
    72,613.88x = 108,855.20 × 50,437.70
  4. Step 4: Simplify right side
    72,613.88x = 5,490,405,921.04
  5. Step 5: Solve for x
    x = 5,490,405,921.04/72,613.88
  6. Step 6: Final answer
    x = 75,610.97

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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.