Home / 79,115.87-109,180.93-43,305.11

Finding the Fourth Proportional to 79,115.87, 109,180.93 and 43,305.11

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Solution

The fourth proportional to 79,115.87, 109,180.93 and 43,305.11 is: 59,761.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,115.87 : 109,180.93 = 43,305.11 : x
  2. Step 2: Convert to fraction form
    79,115.87/109,180.93 = 43,305.11/x
  3. Step 3: Cross multiply
    79,115.87x = 109,180.93 × 43,305.11
  4. Step 4: Simplify right side
    79,115.87x = 4,728,092,183.55
  5. Step 5: Solve for x
    x = 4,728,092,183.55/79,115.87
  6. Step 6: Final answer
    x = 59,761.62

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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.