Home / 54,514.20-75,230.31-30,639.48

Finding the Fourth Proportional to 54,514.20, 75,230.31 and 30,639.48

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Solution

The fourth proportional to 54,514.20, 75,230.31 and 30,639.48 is: 42,282.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,514.20 : 75,230.31 = 30,639.48 : x
  2. Step 2: Convert to fraction form
    54,514.20/75,230.31 = 30,639.48/x
  3. Step 3: Cross multiply
    54,514.20x = 75,230.31 × 30,639.48
  4. Step 4: Simplify right side
    54,514.20x = 2,305,017,578.64
  5. Step 5: Solve for x
    x = 2,305,017,578.64/54,514.20
  6. Step 6: Final answer
    x = 42,282.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.