Home / 69,778.26-104,667.80-17,187.39

Finding the Fourth Proportional to 69,778.26, 104,667.80 and 17,187.39

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Solution

The fourth proportional to 69,778.26, 104,667.80 and 17,187.39 is: 25,781.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,778.26 : 104,667.80 = 17,187.39 : x
  2. Step 2: Convert to fraction form
    69,778.26/104,667.80 = 17,187.39/x
  3. Step 3: Cross multiply
    69,778.26x = 104,667.80 × 17,187.39
  4. Step 4: Simplify right side
    69,778.26x = 1,798,966,213.11
  5. Step 5: Solve for x
    x = 1,798,966,213.11/69,778.26
  6. Step 6: Final answer
    x = 25,781.18

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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.