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Finding the Fourth Proportional to 73.27, 100.48 and 70.54

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Solution

The fourth proportional to 73.27, 100.48 and 70.54 is: 96.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.27 : 100.48 = 70.54 : x
  2. Step 2: Convert to fraction form
    73.27/100.48 = 70.54/x
  3. Step 3: Cross multiply
    73.27x = 100.48 × 70.54
  4. Step 4: Simplify right side
    73.27x = 7,087.86
  5. Step 5: Solve for x
    x = 7,087.86/73.27
  6. Step 6: Final answer
    x = 96.74

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.