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Finding the Fourth Proportional to 79,864.56, 119,591.96 and 77,499.56

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Solution

The fourth proportional to 79,864.56, 119,591.96 and 77,499.56 is: 116,050.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,864.56 : 119,591.96 = 77,499.56 : x
  2. Step 2: Convert to fraction form
    79,864.56/119,591.96 = 77,499.56/x
  3. Step 3: Cross multiply
    79,864.56x = 119,591.96 × 77,499.56
  4. Step 4: Simplify right side
    79,864.56x = 9,268,324,191.02
  5. Step 5: Solve for x
    x = 9,268,324,191.02/79,864.56
  6. Step 6: Final answer
    x = 116,050.53

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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.