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Finding the Fourth Proportional to 68.03, 93.55 and 60.28

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Solution

The fourth proportional to 68.03, 93.55 and 60.28 is: 82.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    68.03 : 93.55 = 60.28 : x
  2. Step 2: Convert to fraction form
    68.03/93.55 = 60.28/x
  3. Step 3: Cross multiply
    68.03x = 93.55 × 60.28
  4. Step 4: Simplify right side
    68.03x = 5,639.19
  5. Step 5: Solve for x
    x = 5,639.19/68.03
  6. Step 6: Final answer
    x = 82.89

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Why These Related Problems?

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