Home / 54,149.91-81,216.65-18,616.62

Finding the Fourth Proportional to 54,149.91, 81,216.65 and 18,616.62

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Solution

The fourth proportional to 54,149.91, 81,216.65 and 18,616.62 is: 27,922.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,149.91 : 81,216.65 = 18,616.62 : x
  2. Step 2: Convert to fraction form
    54,149.91/81,216.65 = 18,616.62/x
  3. Step 3: Cross multiply
    54,149.91x = 81,216.65 × 18,616.62
  4. Step 4: Simplify right side
    54,149.91x = 1,511,979,417.64
  5. Step 5: Solve for x
    x = 1,511,979,417.64/54,149.91
  6. Step 6: Final answer
    x = 27,922.10

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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.