Home / 172,213.11-258,319.31-47,553.75

Finding the Fourth Proportional to 172,213.11, 258,319.31 and 47,553.75

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Solution

The fourth proportional to 172,213.11, 258,319.31 and 47,553.75 is: 71,330.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,213.11 : 258,319.31 = 47,553.75 : x
  2. Step 2: Convert to fraction form
    172,213.11/258,319.31 = 47,553.75/x
  3. Step 3: Cross multiply
    172,213.11x = 258,319.31 × 47,553.75
  4. Step 4: Simplify right side
    172,213.11x = 12,284,051,650.14
  5. Step 5: Solve for x
    x = 12,284,051,650.14/172,213.11
  6. Step 6: Final answer
    x = 71,330.53

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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.