Home / 75,115.30-103,659.11-41,581.30

Finding the Fourth Proportional to 75,115.30, 103,659.11 and 41,581.30

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Solution

The fourth proportional to 75,115.30, 103,659.11 and 41,581.30 is: 57,382.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,115.30 : 103,659.11 = 41,581.30 : x
  2. Step 2: Convert to fraction form
    75,115.30/103,659.11 = 41,581.30/x
  3. Step 3: Cross multiply
    75,115.30x = 103,659.11 × 41,581.30
  4. Step 4: Simplify right side
    75,115.30x = 4,310,280,550.64
  5. Step 5: Solve for x
    x = 4,310,280,550.64/75,115.30
  6. Step 6: Final answer
    x = 57,382.19

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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.