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Finding the Fourth Proportional to 73.45, 110.22 and 46.45

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Solution

The fourth proportional to 73.45, 110.22 and 46.45 is: 69.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.45 : 110.22 = 46.45 : x
  2. Step 2: Convert to fraction form
    73.45/110.22 = 46.45/x
  3. Step 3: Cross multiply
    73.45x = 110.22 × 46.45
  4. Step 4: Simplify right side
    73.45x = 5,119.72
  5. Step 5: Solve for x
    x = 5,119.72/73.45
  6. Step 6: Final answer
    x = 69.70

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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.