Home / 54,514.60-81,695.10-40,364.20

Finding the Fourth Proportional to 54,514.60, 81,695.10 and 40,364.20

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Solution

The fourth proportional to 54,514.60, 81,695.10 and 40,364.20 is: 60,489.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,514.60 : 81,695.10 = 40,364.20 : x
  2. Step 2: Convert to fraction form
    54,514.60/81,695.10 = 40,364.20/x
  3. Step 3: Cross multiply
    54,514.60x = 81,695.10 × 40,364.20
  4. Step 4: Simplify right side
    54,514.60x = 3,297,557,355.42
  5. Step 5: Solve for x
    x = 3,297,557,355.42/54,514.60
  6. Step 6: Final answer
    x = 60,489.44

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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.