Home / 172,566.20-258,849.12-54,247.88

Finding the Fourth Proportional to 172,566.20, 258,849.12 and 54,247.88

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Solution

The fourth proportional to 172,566.20, 258,849.12 and 54,247.88 is: 81,371.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,566.20 : 258,849.12 = 54,247.88 : x
  2. Step 2: Convert to fraction form
    172,566.20/258,849.12 = 54,247.88/x
  3. Step 3: Cross multiply
    172,566.20x = 258,849.12 × 54,247.88
  4. Step 4: Simplify right side
    172,566.20x = 14,042,015,999.87
  5. Step 5: Solve for x
    x = 14,042,015,999.87/172,566.20
  6. Step 6: Final answer
    x = 81,371.76

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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.