Home / 54,228.18-81,332.25-16,781.28

Finding the Fourth Proportional to 54,228.18, 81,332.25 and 16,781.28

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Solution

The fourth proportional to 54,228.18, 81,332.25 and 16,781.28 is: 25,168.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,228.18 : 81,332.25 = 16,781.28 : x
  2. Step 2: Convert to fraction form
    54,228.18/81,332.25 = 16,781.28/x
  3. Step 3: Cross multiply
    54,228.18x = 81,332.25 × 16,781.28
  4. Step 4: Simplify right side
    54,228.18x = 1,364,858,986.75
  5. Step 5: Solve for x
    x = 1,364,858,986.75/54,228.18
  6. Step 6: Final answer
    x = 25,168.81

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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.