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Finding the Fourth Proportional to 68.87, 95.71 and 68.01

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Solution

The fourth proportional to 68.87, 95.71 and 68.01 is: 94.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.87 : 95.71 = 68.01 : x
  2. Step 2: Convert to fraction form
    68.87/95.71 = 68.01/x
  3. Step 3: Cross multiply
    68.87x = 95.71 × 68.01
  4. Step 4: Simplify right side
    68.87x = 6,509.13
  5. Step 5: Solve for x
    x = 6,509.13/68.87
  6. Step 6: Final answer
    x = 94.51

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.