Home / 81,576.55-122,350.23-51,906.25

Finding the Fourth Proportional to 81,576.55, 122,350.23 and 51,906.25

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Solution

The fourth proportional to 81,576.55, 122,350.23 and 51,906.25 is: 77,850.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,576.55 : 122,350.23 = 51,906.25 : x
  2. Step 2: Convert to fraction form
    81,576.55/122,350.23 = 51,906.25/x
  3. Step 3: Cross multiply
    81,576.55x = 122,350.23 × 51,906.25
  4. Step 4: Simplify right side
    81,576.55x = 6,350,741,778.88
  5. Step 5: Solve for x
    x = 6,350,741,778.88/81,576.55
  6. Step 6: Final answer
    x = 77,850.09

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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.