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Finding the Fourth Proportional to 73.51, 110.24 and 43.09

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Solution

The fourth proportional to 73.51, 110.24 and 43.09 is: 64.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.51 : 110.24 = 43.09 : x
  2. Step 2: Convert to fraction form
    73.51/110.24 = 43.09/x
  3. Step 3: Cross multiply
    73.51x = 110.24 × 43.09
  4. Step 4: Simplify right side
    73.51x = 4,750.30
  5. Step 5: Solve for x
    x = 4,750.30/73.51
  6. Step 6: Final answer
    x = 64.62

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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.