Home / 74,092.92-111,135.46-20,788.61

Finding the Fourth Proportional to 74,092.92, 111,135.46 and 20,788.61

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Solution

The fourth proportional to 74,092.92, 111,135.46 and 20,788.61 is: 31,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,092.92 : 111,135.46 = 20,788.61 : x
  2. Step 2: Convert to fraction form
    74,092.92/111,135.46 = 20,788.61/x
  3. Step 3: Cross multiply
    74,092.92x = 111,135.46 × 20,788.61
  4. Step 4: Simplify right side
    74,092.92x = 2,310,351,735.11
  5. Step 5: Solve for x
    x = 2,310,351,735.11/74,092.92
  6. Step 6: Final answer
    x = 31,181.82

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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.