Home / 172,304.91-258,428.21-47,616.75

Finding the Fourth Proportional to 172,304.91, 258,428.21 and 47,616.75

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Solution

The fourth proportional to 172,304.91, 258,428.21 and 47,616.75 is: 71,417.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,304.91 : 258,428.21 = 47,616.75 : x
  2. Step 2: Convert to fraction form
    172,304.91/258,428.21 = 47,616.75/x
  3. Step 3: Cross multiply
    172,304.91x = 258,428.21 × 47,616.75
  4. Step 4: Simplify right side
    172,304.91x = 12,305,511,230.43
  5. Step 5: Solve for x
    x = 12,305,511,230.43/172,304.91
  6. Step 6: Final answer
    x = 71,417.07

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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.