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Finding the Fourth Proportional to 69.04, 104.11 and 65.26

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Solution

The fourth proportional to 69.04, 104.11 and 65.26 is: 98.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    69.04 : 104.11 = 65.26 : x
  2. Step 2: Convert to fraction form
    69.04/104.11 = 65.26/x
  3. Step 3: Cross multiply
    69.04x = 104.11 × 65.26
  4. Step 4: Simplify right side
    69.04x = 6,794.22
  5. Step 5: Solve for x
    x = 6,794.22/69.04
  6. Step 6: Final answer
    x = 98.41

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.