Home / 79,450.92-119,176.27-20,286.60

Finding the Fourth Proportional to 79,450.92, 119,176.27 and 20,286.60

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Solution

The fourth proportional to 79,450.92, 119,176.27 and 20,286.60 is: 30,429.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,450.92 : 119,176.27 = 20,286.60 : x
  2. Step 2: Convert to fraction form
    79,450.92/119,176.27 = 20,286.60/x
  3. Step 3: Cross multiply
    79,450.92x = 119,176.27 × 20,286.60
  4. Step 4: Simplify right side
    79,450.92x = 2,417,681,318.98
  5. Step 5: Solve for x
    x = 2,417,681,318.98/79,450.92
  6. Step 6: Final answer
    x = 30,429.87

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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.