Home / 69,414.32-104,121.82-21,382.37

Finding the Fourth Proportional to 69,414.32, 104,121.82 and 21,382.37

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Solution

The fourth proportional to 69,414.32, 104,121.82 and 21,382.37 is: 32,073.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,414.32 : 104,121.82 = 21,382.37 : x
  2. Step 2: Convert to fraction form
    69,414.32/104,121.82 = 21,382.37/x
  3. Step 3: Cross multiply
    69,414.32x = 104,121.82 × 21,382.37
  4. Step 4: Simplify right side
    69,414.32x = 2,226,371,280.31
  5. Step 5: Solve for x
    x = 2,226,371,280.31/69,414.32
  6. Step 6: Final answer
    x = 32,073.66

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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.