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Finding the Fourth Proportional to 44.08, 66.36 and 30.64

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Solution

The fourth proportional to 44.08, 66.36 and 30.64 is: 46.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    44.08 : 66.36 = 30.64 : x
  2. Step 2: Convert to fraction form
    44.08/66.36 = 30.64/x
  3. Step 3: Cross multiply
    44.08x = 66.36 × 30.64
  4. Step 4: Simplify right side
    44.08x = 2,033.10
  5. Step 5: Solve for x
    x = 2,033.10/44.08
  6. Step 6: Final answer
    x = 46.13

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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.