Home / 90,736.56-125,186.48-54,912.96

Finding the Fourth Proportional to 90,736.56, 125,186.48 and 54,912.96

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Solution

The fourth proportional to 90,736.56, 125,186.48 and 54,912.96 is: 75,761.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,736.56 : 125,186.48 = 54,912.96 : x
  2. Step 2: Convert to fraction form
    90,736.56/125,186.48 = 54,912.96/x
  3. Step 3: Cross multiply
    90,736.56x = 125,186.48 × 54,912.96
  4. Step 4: Simplify right side
    90,736.56x = 6,874,360,168.78
  5. Step 5: Solve for x
    x = 6,874,360,168.78/90,736.56
  6. Step 6: Final answer
    x = 75,761.75

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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.