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Finding the Fourth Proportional to 73.54, 110.19 and 53.22

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Solution

The fourth proportional to 73.54, 110.19 and 53.22 is: 79.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.54 : 110.19 = 53.22 : x
  2. Step 2: Convert to fraction form
    73.54/110.19 = 53.22/x
  3. Step 3: Cross multiply
    73.54x = 110.19 × 53.22
  4. Step 4: Simplify right side
    73.54x = 5,864.31
  5. Step 5: Solve for x
    x = 5,864.31/73.54
  6. Step 6: Final answer
    x = 79.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.