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Finding the Fourth Proportional to 67.16, 101.16 and 63.30

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Solution

The fourth proportional to 67.16, 101.16 and 63.30 is: 95.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.16 : 101.16 = 63.30 : x
  2. Step 2: Convert to fraction form
    67.16/101.16 = 63.30/x
  3. Step 3: Cross multiply
    67.16x = 101.16 × 63.30
  4. Step 4: Simplify right side
    67.16x = 6,403.43
  5. Step 5: Solve for x
    x = 6,403.43/67.16
  6. Step 6: Final answer
    x = 95.35

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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.