Home / 90,910.44-125,391.78-60,680.52

Finding the Fourth Proportional to 90,910.44, 125,391.78 and 60,680.52

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Solution

The fourth proportional to 90,910.44, 125,391.78 and 60,680.52 is: 83,695.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,910.44 : 125,391.78 = 60,680.52 : x
  2. Step 2: Convert to fraction form
    90,910.44/125,391.78 = 60,680.52/x
  3. Step 3: Cross multiply
    90,910.44x = 125,391.78 × 60,680.52
  4. Step 4: Simplify right side
    90,910.44x = 7,608,838,414.13
  5. Step 5: Solve for x
    x = 7,608,838,414.13/90,910.44
  6. Step 6: Final answer
    x = 83,695.98

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1.5x scale

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.