Home / 69,301.48-103,965.03-21,928.49

Finding the Fourth Proportional to 69,301.48, 103,965.03 and 21,928.49

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Solution

The fourth proportional to 69,301.48, 103,965.03 and 21,928.49 is: 32,896.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,301.48 : 103,965.03 = 21,928.49 : x
  2. Step 2: Convert to fraction form
    69,301.48/103,965.03 = 21,928.49/x
  3. Step 3: Cross multiply
    69,301.48x = 103,965.03 × 21,928.49
  4. Step 4: Simplify right side
    69,301.48x = 2,279,796,120.70
  5. Step 5: Solve for x
    x = 2,279,796,120.70/69,301.48
  6. Step 6: Final answer
    x = 32,896.79

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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.