Home / 258,383.24-387,575.04-71,394.92

Finding the Fourth Proportional to 258,383.24, 387,575.04 and 71,394.92

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Solution

The fourth proportional to 258,383.24, 387,575.04 and 71,394.92 is: 107,092.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,383.24 : 387,575.04 = 71,394.92 : x
  2. Step 2: Convert to fraction form
    258,383.24/387,575.04 = 71,394.92/x
  3. Step 3: Cross multiply
    258,383.24x = 387,575.04 × 71,394.92
  4. Step 4: Simplify right side
    258,383.24x = 27,670,888,974.80
  5. Step 5: Solve for x
    x = 27,670,888,974.80/258,383.24
  6. Step 6: Final answer
    x = 107,092.43

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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.