Home / 90,761.40-125,235.49-50,469.88

Finding the Fourth Proportional to 90,761.40, 125,235.49 and 50,469.88

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Solution

The fourth proportional to 90,761.40, 125,235.49 and 50,469.88 is: 69,639.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,761.40 : 125,235.49 = 50,469.88 : x
  2. Step 2: Convert to fraction form
    90,761.40/125,235.49 = 50,469.88/x
  3. Step 3: Cross multiply
    90,761.40x = 125,235.49 × 50,469.88
  4. Step 4: Simplify right side
    90,761.40x = 6,320,619,712.78
  5. Step 5: Solve for x
    x = 6,320,619,712.78/90,761.40
  6. Step 6: Final answer
    x = 69,639.95

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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.