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Finding the Fourth Proportional to 69,010.49, 103,515.77 and 21,629.27

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Solution

The fourth proportional to 69,010.49, 103,515.77 and 21,629.27 is: 32,443.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,010.49 : 103,515.77 = 21,629.27 : x
  2. Step 2: Convert to fraction form
    69,010.49/103,515.77 = 21,629.27/x
  3. Step 3: Cross multiply
    69,010.49x = 103,515.77 × 21,629.27
  4. Step 4: Simplify right side
    69,010.49x = 2,238,971,007.88
  5. Step 5: Solve for x
    x = 2,238,971,007.88/69,010.49
  6. Step 6: Final answer
    x = 32,443.92

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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.