Home / 54,249.30-81,386.10-16,811.10

Finding the Fourth Proportional to 54,249.30, 81,386.10 and 16,811.10

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Solution

The fourth proportional to 54,249.30, 81,386.10 and 16,811.10 is: 25,220.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,249.30 : 81,386.10 = 16,811.10 : x
  2. Step 2: Convert to fraction form
    54,249.30/81,386.10 = 16,811.10/x
  3. Step 3: Cross multiply
    54,249.30x = 81,386.10 × 16,811.10
  4. Step 4: Simplify right side
    54,249.30x = 1,368,189,865.71
  5. Step 5: Solve for x
    x = 1,368,189,865.71/54,249.30
  6. Step 6: Final answer
    x = 25,220.42

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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.