Home / 54,530.52-81,839.51-28,242.78

Finding the Fourth Proportional to 54,530.52, 81,839.51 and 28,242.78

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Solution

The fourth proportional to 54,530.52, 81,839.51 and 28,242.78 is: 42,386.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,530.52 : 81,839.51 = 28,242.78 : x
  2. Step 2: Convert to fraction form
    54,530.52/81,839.51 = 28,242.78/x
  3. Step 3: Cross multiply
    54,530.52x = 81,839.51 × 28,242.78
  4. Step 4: Simplify right side
    54,530.52x = 2,311,375,092.90
  5. Step 5: Solve for x
    x = 2,311,375,092.90/54,530.52
  6. Step 6: Final answer
    x = 42,386.82

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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.