Home / 75,213.12-103,789.44-41,679.20

Finding the Fourth Proportional to 75,213.12, 103,789.44 and 41,679.20

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Solution

The fourth proportional to 75,213.12, 103,789.44 and 41,679.20 is: 57,514.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,213.12 : 103,789.44 = 41,679.20 : x
  2. Step 2: Convert to fraction form
    75,213.12/103,789.44 = 41,679.20/x
  3. Step 3: Cross multiply
    75,213.12x = 103,789.44 × 41,679.20
  4. Step 4: Simplify right side
    75,213.12x = 4,325,860,827.65
  5. Step 5: Solve for x
    x = 4,325,860,827.65/75,213.12
  6. Step 6: Final answer
    x = 57,514.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.