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Finding the Fourth Proportional to 64,469.37, 96,704.09 and 20,099.70

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Solution

The fourth proportional to 64,469.37, 96,704.09 and 20,099.70 is: 30,149.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,469.37 : 96,704.09 = 20,099.70 : x
  2. Step 2: Convert to fraction form
    64,469.37/96,704.09 = 20,099.70/x
  3. Step 3: Cross multiply
    64,469.37x = 96,704.09 × 20,099.70
  4. Step 4: Simplify right side
    64,469.37x = 1,943,723,097.27
  5. Step 5: Solve for x
    x = 1,943,723,097.27/64,469.37
  6. Step 6: Final answer
    x = 30,149.56

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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.