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Finding the Fourth Proportional to 80,654, 111,297.25 and 44,842.69

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Solution

The fourth proportional to 80,654, 111,297.25 and 44,842.69 is: 61,879.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,654 : 111,297.25 = 44,842.69 : x
  2. Step 2: Convert to fraction form
    80,654/111,297.25 = 44,842.69/x
  3. Step 3: Cross multiply
    80,654x = 111,297.25 × 44,842.69
  4. Step 4: Simplify right side
    80,654x = 4,990,868,079.60
  5. Step 5: Solve for x
    x = 4,990,868,079.60/80,654
  6. Step 6: Final answer
    x = 61,879.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.