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Finding the Fourth Proportional to 59.13, 81.50 and 49.33

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Solution

The fourth proportional to 59.13, 81.50 and 49.33 is: 67.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    59.13 : 81.50 = 49.33 : x
  2. Step 2: Convert to fraction form
    59.13/81.50 = 49.33/x
  3. Step 3: Cross multiply
    59.13x = 81.50 × 49.33
  4. Step 4: Simplify right side
    59.13x = 4,020.25
  5. Step 5: Solve for x
    x = 4,020.25/59.13
  6. Step 6: Final answer
    x = 67.99

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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.