Home / 81,115.90-111,939.37-44,819.60

Finding the Fourth Proportional to 81,115.90, 111,939.37 and 44,819.60

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Solution

The fourth proportional to 81,115.90, 111,939.37 and 44,819.60 is: 61,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,115.90 : 111,939.37 = 44,819.60 : x
  2. Step 2: Convert to fraction form
    81,115.90/111,939.37 = 44,819.60/x
  3. Step 3: Cross multiply
    81,115.90x = 111,939.37 × 44,819.60
  4. Step 4: Simplify right side
    81,115.90x = 5,017,077,115.91
  5. Step 5: Solve for x
    x = 5,017,077,115.91/81,115.90
  6. Step 6: Final answer
    x = 61,850.73

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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.