Home / 69,121.01-103,721.85-29,137.57

Finding the Fourth Proportional to 69,121.01, 103,721.85 and 29,137.57

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Solution

The fourth proportional to 69,121.01, 103,721.85 and 29,137.57 is: 43,723.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,121.01 : 103,721.85 = 29,137.57 : x
  2. Step 2: Convert to fraction form
    69,121.01/103,721.85 = 29,137.57/x
  3. Step 3: Cross multiply
    69,121.01x = 103,721.85 × 29,137.57
  4. Step 4: Simplify right side
    69,121.01x = 3,022,202,405.60
  5. Step 5: Solve for x
    x = 3,022,202,405.60/69,121.01
  6. Step 6: Final answer
    x = 43,723.35

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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.