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Finding the Fourth Proportional to 67.65, 93.19 and 49.18

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Solution

The fourth proportional to 67.65, 93.19 and 49.18 is: 67.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    67.65 : 93.19 = 49.18 : x
  2. Step 2: Convert to fraction form
    67.65/93.19 = 49.18/x
  3. Step 3: Cross multiply
    67.65x = 93.19 × 49.18
  4. Step 4: Simplify right side
    67.65x = 4,583.08
  5. Step 5: Solve for x
    x = 4,583.08/67.65
  6. Step 6: Final answer
    x = 67.75

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.