Home / 87,476.76-120,716.82-49,236.12

Finding the Fourth Proportional to 87,476.76, 120,716.82 and 49,236.12

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Solution

The fourth proportional to 87,476.76, 120,716.82 and 49,236.12 is: 67,945.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,476.76 : 120,716.82 = 49,236.12 : x
  2. Step 2: Convert to fraction form
    87,476.76/120,716.82 = 49,236.12/x
  3. Step 3: Cross multiply
    87,476.76x = 120,716.82 × 49,236.12
  4. Step 4: Simplify right side
    87,476.76x = 5,943,627,835.54
  5. Step 5: Solve for x
    x = 5,943,627,835.54/87,476.76
  6. Step 6: Final answer
    x = 67,945.22

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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.