Home / 69,112.46-103,640.78-26,986.52

Finding the Fourth Proportional to 69,112.46, 103,640.78 and 26,986.52

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Solution

The fourth proportional to 69,112.46, 103,640.78 and 26,986.52 is: 40,468.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,112.46 : 103,640.78 = 26,986.52 : x
  2. Step 2: Convert to fraction form
    69,112.46/103,640.78 = 26,986.52/x
  3. Step 3: Cross multiply
    69,112.46x = 103,640.78 × 26,986.52
  4. Step 4: Simplify right side
    69,112.46x = 2,796,903,982.29
  5. Step 5: Solve for x
    x = 2,796,903,982.29/69,112.46
  6. Step 6: Final answer
    x = 40,468.88

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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.