Home / 54,249.54-81,385.92-16,808.78

Finding the Fourth Proportional to 54,249.54, 81,385.92 and 16,808.78

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Solution

The fourth proportional to 54,249.54, 81,385.92 and 16,808.78 is: 25,216.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,249.54 : 81,385.92 = 16,808.78 : x
  2. Step 2: Convert to fraction form
    54,249.54/81,385.92 = 16,808.78/x
  3. Step 3: Cross multiply
    54,249.54x = 81,385.92 × 16,808.78
  4. Step 4: Simplify right side
    54,249.54x = 1,367,998,024.38
  5. Step 5: Solve for x
    x = 1,367,998,024.38/54,249.54
  6. Step 6: Final answer
    x = 25,216.77

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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.