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Finding the Fourth Proportional to 73.36, 101.01 and 71.85

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Solution

The fourth proportional to 73.36, 101.01 and 71.85 is: 98.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.36 : 101.01 = 71.85 : x
  2. Step 2: Convert to fraction form
    73.36/101.01 = 71.85/x
  3. Step 3: Cross multiply
    73.36x = 101.01 × 71.85
  4. Step 4: Simplify right side
    73.36x = 7,257.57
  5. Step 5: Solve for x
    x = 7,257.57/73.36
  6. Step 6: Final answer
    x = 98.93

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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.