Home / 92,078.31-127,069.38-54,352.56

Finding the Fourth Proportional to 92,078.31, 127,069.38 and 54,352.56

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Solution

The fourth proportional to 92,078.31, 127,069.38 and 54,352.56 is: 75,007.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,078.31 : 127,069.38 = 54,352.56 : x
  2. Step 2: Convert to fraction form
    92,078.31/127,069.38 = 54,352.56/x
  3. Step 3: Cross multiply
    92,078.31x = 127,069.38 × 54,352.56
  4. Step 4: Simplify right side
    92,078.31x = 6,906,546,100.61
  5. Step 5: Solve for x
    x = 6,906,546,100.61/92,078.31
  6. Step 6: Final answer
    x = 75,007.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.