Home / 82,318.76-123,404.81-29,716.54

Finding the Fourth Proportional to 82,318.76, 123,404.81 and 29,716.54

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Solution

The fourth proportional to 82,318.76, 123,404.81 and 29,716.54 is: 44,548.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,318.76 : 123,404.81 = 29,716.54 : x
  2. Step 2: Convert to fraction form
    82,318.76/123,404.81 = 29,716.54/x
  3. Step 3: Cross multiply
    82,318.76x = 123,404.81 × 29,716.54
  4. Step 4: Simplify right side
    82,318.76x = 3,667,163,972.56
  5. Step 5: Solve for x
    x = 3,667,163,972.56/82,318.76
  6. Step 6: Final answer
    x = 44,548.34

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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.