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Finding the Fourth Proportional to 90,349.44, 135,524.48 and 63,974.40

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Solution

The fourth proportional to 90,349.44, 135,524.48 and 63,974.40 is: 95,961.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,349.44 : 135,524.48 = 63,974.40 : x
  2. Step 2: Convert to fraction form
    90,349.44/135,524.48 = 63,974.40/x
  3. Step 3: Cross multiply
    90,349.44x = 135,524.48 × 63,974.40
  4. Step 4: Simplify right side
    90,349.44x = 8,670,097,293.31
  5. Step 5: Solve for x
    x = 8,670,097,293.31/90,349.44
  6. Step 6: Final answer
    x = 95,961.83

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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.