Home / 80,659.47-120,884.09-41,183.31

Finding the Fourth Proportional to 80,659.47, 120,884.09 and 41,183.31

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Solution

The fourth proportional to 80,659.47, 120,884.09 and 41,183.31 is: 61,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,659.47 : 120,884.09 = 41,183.31 : x
  2. Step 2: Convert to fraction form
    80,659.47/120,884.09 = 41,183.31/x
  3. Step 3: Cross multiply
    80,659.47x = 120,884.09 × 41,183.31
  4. Step 4: Simplify right side
    80,659.47x = 4,978,406,746.62
  5. Step 5: Solve for x
    x = 4,978,406,746.62/80,659.47
  6. Step 6: Final answer
    x = 61,721.29

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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.