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Finding the Fourth Proportional to 46.09, 68.86 and 44.47

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Solution

The fourth proportional to 46.09, 68.86 and 44.47 is: 66.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.09 : 68.86 = 44.47 : x
  2. Step 2: Convert to fraction form
    46.09/68.86 = 44.47/x
  3. Step 3: Cross multiply
    46.09x = 68.86 × 44.47
  4. Step 4: Simplify right side
    46.09x = 3,062.20
  5. Step 5: Solve for x
    x = 3,062.20/46.09
  6. Step 6: Final answer
    x = 66.44

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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.