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Finding the Fourth Proportional to 74.14, 102.03 and 60.02

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Solution

The fourth proportional to 74.14, 102.03 and 60.02 is: 82.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.14 : 102.03 = 60.02 : x
  2. Step 2: Convert to fraction form
    74.14/102.03 = 60.02/x
  3. Step 3: Cross multiply
    74.14x = 102.03 × 60.02
  4. Step 4: Simplify right side
    74.14x = 6,123.84
  5. Step 5: Solve for x
    x = 6,123.84/74.14
  6. Step 6: Final answer
    x = 82.60

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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.