Home / 172,529.48-258,791.64-54,207.92

Finding the Fourth Proportional to 172,529.48, 258,791.64 and 54,207.92

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Solution

The fourth proportional to 172,529.48, 258,791.64 and 54,207.92 is: 81,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,529.48 : 258,791.64 = 54,207.92 : x
  2. Step 2: Convert to fraction form
    172,529.48/258,791.64 = 54,207.92/x
  3. Step 3: Cross multiply
    172,529.48x = 258,791.64 × 54,207.92
  4. Step 4: Simplify right side
    172,529.48x = 14,028,556,517.79
  5. Step 5: Solve for x
    x = 14,028,556,517.79/172,529.48
  6. Step 6: Final answer
    x = 81,311.07

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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.