Home / 54,839.31-82,134.11-42,918.74

Finding the Fourth Proportional to 54,839.31, 82,134.11 and 42,918.74

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Solution

The fourth proportional to 54,839.31, 82,134.11 and 42,918.74 is: 64,280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,839.31 : 82,134.11 = 42,918.74 : x
  2. Step 2: Convert to fraction form
    54,839.31/82,134.11 = 42,918.74/x
  3. Step 3: Cross multiply
    54,839.31x = 82,134.11 × 42,918.74
  4. Step 4: Simplify right side
    54,839.31x = 3,525,092,101.55
  5. Step 5: Solve for x
    x = 3,525,092,101.55/54,839.31
  6. Step 6: Final answer
    x = 64,280.39

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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.