Home / 79,539.40-119,306.35-20,375.65

Finding the Fourth Proportional to 79,539.40, 119,306.35 and 20,375.65

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Solution

The fourth proportional to 79,539.40, 119,306.35 and 20,375.65 is: 30,562.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,539.40 : 119,306.35 = 20,375.65 : x
  2. Step 2: Convert to fraction form
    79,539.40/119,306.35 = 20,375.65/x
  3. Step 3: Cross multiply
    79,539.40x = 119,306.35 × 20,375.65
  4. Step 4: Simplify right side
    79,539.40x = 2,430,944,430.38
  5. Step 5: Solve for x
    x = 2,430,944,430.38/79,539.40
  6. Step 6: Final answer
    x = 30,562.77

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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.