Home / 54,231.10-81,339.15-16,816.90

Finding the Fourth Proportional to 54,231.10, 81,339.15 and 16,816.90

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Solution

The fourth proportional to 54,231.10, 81,339.15 and 16,816.90 is: 25,223.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,231.10 : 81,339.15 = 16,816.90 : x
  2. Step 2: Convert to fraction form
    54,231.10/81,339.15 = 16,816.90/x
  3. Step 3: Cross multiply
    54,231.10x = 81,339.15 × 16,816.90
  4. Step 4: Simplify right side
    54,231.10x = 1,367,872,351.64
  5. Step 5: Solve for x
    x = 1,367,872,351.64/54,231.10
  6. Step 6: Final answer
    x = 25,223.02

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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.