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Finding the Fourth Proportional to 49.25, 73.36 and 46.68

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Solution

The fourth proportional to 49.25, 73.36 and 46.68 is: 69.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    49.25 : 73.36 = 46.68 : x
  2. Step 2: Convert to fraction form
    49.25/73.36 = 46.68/x
  3. Step 3: Cross multiply
    49.25x = 73.36 × 46.68
  4. Step 4: Simplify right side
    49.25x = 3,424.21
  5. Step 5: Solve for x
    x = 3,424.21/49.25
  6. Step 6: Final answer
    x = 69.53

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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.