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Finding the Fourth Proportional to 79,499.59, 119,253.50 and 20,335.78

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Solution

The fourth proportional to 79,499.59, 119,253.50 and 20,335.78 is: 30,504.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,499.59 : 119,253.50 = 20,335.78 : x
  2. Step 2: Convert to fraction form
    79,499.59/119,253.50 = 20,335.78/x
  3. Step 3: Cross multiply
    79,499.59x = 119,253.50 × 20,335.78
  4. Step 4: Simplify right side
    79,499.59x = 2,425,112,393.08
  5. Step 5: Solve for x
    x = 2,425,112,393.08/79,499.59
  6. Step 6: Final answer
    x = 30,504.71

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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.