Home / 69,208.75-103,732.14-31,772.44

Finding the Fourth Proportional to 69,208.75, 103,732.14 and 31,772.44

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Solution

The fourth proportional to 69,208.75, 103,732.14 and 31,772.44 is: 47,621.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,208.75 : 103,732.14 = 31,772.44 : x
  2. Step 2: Convert to fraction form
    69,208.75/103,732.14 = 31,772.44/x
  3. Step 3: Cross multiply
    69,208.75x = 103,732.14 × 31,772.44
  4. Step 4: Simplify right side
    69,208.75x = 3,295,823,297.16
  5. Step 5: Solve for x
    x = 3,295,823,297.16/69,208.75
  6. Step 6: Final answer
    x = 47,621.48

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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.