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Finding the Fourth Proportional to 80,983.44, 121,489.41 and 27,662.88

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Solution

The fourth proportional to 80,983.44, 121,489.41 and 27,662.88 is: 41,499.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,983.44 : 121,489.41 = 27,662.88 : x
  2. Step 2: Convert to fraction form
    80,983.44/121,489.41 = 27,662.88/x
  3. Step 3: Cross multiply
    80,983.44x = 121,489.41 × 27,662.88
  4. Step 4: Simplify right side
    80,983.44x = 3,360,746,970.10
  5. Step 5: Solve for x
    x = 3,360,746,970.10/80,983.44
  6. Step 6: Final answer
    x = 41,499.19

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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.