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Finding the Fourth Proportional to 45,456.80, 68,216.31 and 15,874.65

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Solution

The fourth proportional to 45,456.80, 68,216.31 and 15,874.65 is: 23,822.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,456.80 : 68,216.31 = 15,874.65 : x
  2. Step 2: Convert to fraction form
    45,456.80/68,216.31 = 15,874.65/x
  3. Step 3: Cross multiply
    45,456.80x = 68,216.31 × 15,874.65
  4. Step 4: Simplify right side
    45,456.80x = 1,082,910,045.54
  5. Step 5: Solve for x
    x = 1,082,910,045.54/45,456.80
  6. Step 6: Final answer
    x = 23,822.84

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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.