Home / 79,982.28-120,046.14-42,573.65

Finding the Fourth Proportional to 79,982.28, 120,046.14 and 42,573.65

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Solution

The fourth proportional to 79,982.28, 120,046.14 and 42,573.65 is: 63,899.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,982.28 : 120,046.14 = 42,573.65 : x
  2. Step 2: Convert to fraction form
    79,982.28/120,046.14 = 42,573.65/x
  3. Step 3: Cross multiply
    79,982.28x = 120,046.14 × 42,573.65
  4. Step 4: Simplify right side
    79,982.28x = 5,110,801,747.98
  5. Step 5: Solve for x
    x = 5,110,801,747.98/79,982.28
  6. Step 6: Final answer
    x = 63,899.18

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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.