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Finding the Fourth Proportional to 80,954.56, 121,442.01 and 43,463.10

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Solution

The fourth proportional to 80,954.56, 121,442.01 and 43,463.10 is: 65,200.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,954.56 : 121,442.01 = 43,463.10 : x
  2. Step 2: Convert to fraction form
    80,954.56/121,442.01 = 43,463.10/x
  3. Step 3: Cross multiply
    80,954.56x = 121,442.01 × 43,463.10
  4. Step 4: Simplify right side
    80,954.56x = 5,278,246,224.83
  5. Step 5: Solve for x
    x = 5,278,246,224.83/80,954.56
  6. Step 6: Final answer
    x = 65,200.11

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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.