Home / 69,761.72-104,640.23-30,318.84

Finding the Fourth Proportional to 69,761.72, 104,640.23 and 30,318.84

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Solution

The fourth proportional to 69,761.72, 104,640.23 and 30,318.84 is: 45,477.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,761.72 : 104,640.23 = 30,318.84 : x
  2. Step 2: Convert to fraction form
    69,761.72/104,640.23 = 30,318.84/x
  3. Step 3: Cross multiply
    69,761.72x = 104,640.23 × 30,318.84
  4. Step 4: Simplify right side
    69,761.72x = 3,172,569,867.73
  5. Step 5: Solve for x
    x = 3,172,569,867.73/69,761.72
  6. Step 6: Final answer
    x = 45,477.23

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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.