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Finding the Fourth Proportional to 90,469.44, 135,604.80 and 37,912.32

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Solution

The fourth proportional to 90,469.44, 135,604.80 and 37,912.32 is: 56,826.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,469.44 : 135,604.80 = 37,912.32 : x
  2. Step 2: Convert to fraction form
    90,469.44/135,604.80 = 37,912.32/x
  3. Step 3: Cross multiply
    90,469.44x = 135,604.80 × 37,912.32
  4. Step 4: Simplify right side
    90,469.44x = 5,141,092,571.14
  5. Step 5: Solve for x
    x = 5,141,092,571.14/90,469.44
  6. Step 6: Final answer
    x = 56,826.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.