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Finding the Fourth Proportional to 58.25, 80.39 and 33.36

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Solution

The fourth proportional to 58.25, 80.39 and 33.36 is: 46.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.25 : 80.39 = 33.36 : x
  2. Step 2: Convert to fraction form
    58.25/80.39 = 33.36/x
  3. Step 3: Cross multiply
    58.25x = 80.39 × 33.36
  4. Step 4: Simplify right side
    58.25x = 2,681.44
  5. Step 5: Solve for x
    x = 2,681.44/58.25
  6. Step 6: Final answer
    x = 46.03

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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.