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Finding the Fourth Proportional to 58.81, 81.10 and 36.96

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Solution

The fourth proportional to 58.81, 81.10 and 36.96 is: 50.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    58.81 : 81.10 = 36.96 : x
  2. Step 2: Convert to fraction form
    58.81/81.10 = 36.96/x
  3. Step 3: Cross multiply
    58.81x = 81.10 × 36.96
  4. Step 4: Simplify right side
    58.81x = 2,997.46
  5. Step 5: Solve for x
    x = 2,997.46/58.81
  6. Step 6: Final answer
    x = 50.97

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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.