Home / 75,169.06-103,728.85-41,170.78

Finding the Fourth Proportional to 75,169.06, 103,728.85 and 41,170.78

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Solution

The fourth proportional to 75,169.06, 103,728.85 and 41,170.78 is: 56,813.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,169.06 : 103,728.85 = 41,170.78 : x
  2. Step 2: Convert to fraction form
    75,169.06/103,728.85 = 41,170.78/x
  3. Step 3: Cross multiply
    75,169.06x = 103,728.85 × 41,170.78
  4. Step 4: Simplify right side
    75,169.06x = 4,270,597,921.32
  5. Step 5: Solve for x
    x = 4,270,597,921.32/75,169.06
  6. Step 6: Final answer
    x = 56,813.24

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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.