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Finding the Fourth Proportional to 46.39, 69.09 and 44.79

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Solution

The fourth proportional to 46.39, 69.09 and 44.79 is: 66.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.39 : 69.09 = 44.79 : x
  2. Step 2: Convert to fraction form
    46.39/69.09 = 44.79/x
  3. Step 3: Cross multiply
    46.39x = 69.09 × 44.79
  4. Step 4: Simplify right side
    46.39x = 3,094.32
  5. Step 5: Solve for x
    x = 3,094.32/46.39
  6. Step 6: Final answer
    x = 66.70

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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.