Home / 90,928.86-125,481.97-52,695.75

Finding the Fourth Proportional to 90,928.86, 125,481.97 and 52,695.75

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Solution

The fourth proportional to 90,928.86, 125,481.97 and 52,695.75 is: 72,720.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,928.86 : 125,481.97 = 52,695.75 : x
  2. Step 2: Convert to fraction form
    90,928.86/125,481.97 = 52,695.75/x
  3. Step 3: Cross multiply
    90,928.86x = 125,481.97 × 52,695.75
  4. Step 4: Simplify right side
    90,928.86x = 6,612,366,203.01
  5. Step 5: Solve for x
    x = 6,612,366,203.01/90,928.86
  6. Step 6: Final answer
    x = 72,720.21

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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.