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Finding the Fourth Proportional to 42.44, 58.51 and 33.19

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Solution

The fourth proportional to 42.44, 58.51 and 33.19 is: 45.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    42.44 : 58.51 = 33.19 : x
  2. Step 2: Convert to fraction form
    42.44/58.51 = 33.19/x
  3. Step 3: Cross multiply
    42.44x = 58.51 × 33.19
  4. Step 4: Simplify right side
    42.44x = 1,942.26
  5. Step 5: Solve for x
    x = 1,942.26/42.44
  6. Step 6: Final answer
    x = 45.76

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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.