Home / 91,517.64-126,288.41-51,231.06

Finding the Fourth Proportional to 91,517.64, 126,288.41 and 51,231.06

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Solution

The fourth proportional to 91,517.64, 126,288.41 and 51,231.06 is: 70,695.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,517.64 : 126,288.41 = 51,231.06 : x
  2. Step 2: Convert to fraction form
    91,517.64/126,288.41 = 51,231.06/x
  3. Step 3: Cross multiply
    91,517.64x = 126,288.41 × 51,231.06
  4. Step 4: Simplify right side
    91,517.64x = 6,469,888,853.86
  5. Step 5: Solve for x
    x = 6,469,888,853.86/91,517.64
  6. Step 6: Final answer
    x = 70,695.54

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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.