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Finding the Fourth Proportional to 73.15, 101.05 and 54.73

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Solution

The fourth proportional to 73.15, 101.05 and 54.73 is: 75.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.15 : 101.05 = 54.73 : x
  2. Step 2: Convert to fraction form
    73.15/101.05 = 54.73/x
  3. Step 3: Cross multiply
    73.15x = 101.05 × 54.73
  4. Step 4: Simplify right side
    73.15x = 5,529.89
  5. Step 5: Solve for x
    x = 5,529.89/73.15
  6. Step 6: Final answer
    x = 75.59

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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.