Home / 172,291.38-258,437.09-53,971.94

Finding the Fourth Proportional to 172,291.38, 258,437.09 and 53,971.94

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Solution

The fourth proportional to 172,291.38, 258,437.09 and 53,971.94 is: 80,957.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,291.38 : 258,437.09 = 53,971.94 : x
  2. Step 2: Convert to fraction form
    172,291.38/258,437.09 = 53,971.94/x
  3. Step 3: Cross multiply
    172,291.38x = 258,437.09 × 53,971.94
  4. Step 4: Simplify right side
    172,291.38x = 13,948,351,115.25
  5. Step 5: Solve for x
    x = 13,948,351,115.25/172,291.38
  6. Step 6: Final answer
    x = 80,957.92

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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.