Home / 69,912.12-104,849.82-47,721.36

Finding the Fourth Proportional to 69,912.12, 104,849.82 and 47,721.36

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Solution

The fourth proportional to 69,912.12, 104,849.82 and 47,721.36 is: 71,569.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,912.12 : 104,849.82 = 47,721.36 : x
  2. Step 2: Convert to fraction form
    69,912.12/104,849.82 = 47,721.36/x
  3. Step 3: Cross multiply
    69,912.12x = 104,849.82 × 47,721.36
  4. Step 4: Simplify right side
    69,912.12x = 5,003,576,006.16
  5. Step 5: Solve for x
    x = 5,003,576,006.16/69,912.12
  6. Step 6: Final answer
    x = 71,569.51

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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.