Home / 71,976.20-107,965.38-27,605.48

Finding the Fourth Proportional to 71,976.20, 107,965.38 and 27,605.48

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Solution

The fourth proportional to 71,976.20, 107,965.38 and 27,605.48 is: 41,408.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,976.20 : 107,965.38 = 27,605.48 : x
  2. Step 2: Convert to fraction form
    71,976.20/107,965.38 = 27,605.48/x
  3. Step 3: Cross multiply
    71,976.20x = 107,965.38 × 27,605.48
  4. Step 4: Simplify right side
    71,976.20x = 2,980,436,138.28
  5. Step 5: Solve for x
    x = 2,980,436,138.28/71,976.20
  6. Step 6: Final answer
    x = 41,408.63

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1.5x scale

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.