Home / 80,414.64-120,621.96-27,795.42

Finding the Fourth Proportional to 80,414.64, 120,621.96 and 27,795.42

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Solution

The fourth proportional to 80,414.64, 120,621.96 and 27,795.42 is: 41,693.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,414.64 : 120,621.96 = 27,795.42 : x
  2. Step 2: Convert to fraction form
    80,414.64/120,621.96 = 27,795.42/x
  3. Step 3: Cross multiply
    80,414.64x = 120,621.96 × 27,795.42
  4. Step 4: Simplify right side
    80,414.64x = 3,352,738,039.42
  5. Step 5: Solve for x
    x = 3,352,738,039.42/80,414.64
  6. Step 6: Final answer
    x = 41,693.13

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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.