Home / 79,511.92-119,268.03-19,540.43

Finding the Fourth Proportional to 79,511.92, 119,268.03 and 19,540.43

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Solution

The fourth proportional to 79,511.92, 119,268.03 and 19,540.43 is: 29,310.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,511.92 : 119,268.03 = 19,540.43 : x
  2. Step 2: Convert to fraction form
    79,511.92/119,268.03 = 19,540.43/x
  3. Step 3: Cross multiply
    79,511.92x = 119,268.03 × 19,540.43
  4. Step 4: Simplify right side
    79,511.92x = 2,330,548,591.45
  5. Step 5: Solve for x
    x = 2,330,548,591.45/79,511.92
  6. Step 6: Final answer
    x = 29,310.68

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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.