Home / 79,451.62-119,177.33-20,287.26

Finding the Fourth Proportional to 79,451.62, 119,177.33 and 20,287.26

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Solution

The fourth proportional to 79,451.62, 119,177.33 and 20,287.26 is: 30,430.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,451.62 : 119,177.33 = 20,287.26 : x
  2. Step 2: Convert to fraction form
    79,451.62/119,177.33 = 20,287.26/x
  3. Step 3: Cross multiply
    79,451.62x = 119,177.33 × 20,287.26
  4. Step 4: Simplify right side
    79,451.62x = 2,417,781,378.38
  5. Step 5: Solve for x
    x = 2,417,781,378.38/79,451.62
  6. Step 6: Final answer
    x = 30,430.86

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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.