Home / 69,121.32-103,678.33-34,049.13

Finding the Fourth Proportional to 69,121.32, 103,678.33 and 34,049.13

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Solution

The fourth proportional to 69,121.32, 103,678.33 and 34,049.13 is: 51,071.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.32 : 103,678.33 = 34,049.13 : x
  2. Step 2: Convert to fraction form
    69,121.32/103,678.33 = 34,049.13/x
  3. Step 3: Cross multiply
    69,121.32x = 103,678.33 × 34,049.13
  4. Step 4: Simplify right side
    69,121.32x = 3,530,156,936.35
  5. Step 5: Solve for x
    x = 3,530,156,936.35/69,121.32
  6. Step 6: Final answer
    x = 51,071.90

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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.