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Finding the Fourth Proportional to 70.26, 104.87 and 60.04

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Solution

The fourth proportional to 70.26, 104.87 and 60.04 is: 89.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70.26 : 104.87 = 60.04 : x
  2. Step 2: Convert to fraction form
    70.26/104.87 = 60.04/x
  3. Step 3: Cross multiply
    70.26x = 104.87 × 60.04
  4. Step 4: Simplify right side
    70.26x = 6,296.39
  5. Step 5: Solve for x
    x = 6,296.39/70.26
  6. Step 6: Final answer
    x = 89.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.