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Finding the Fourth Proportional to 74.53, 102.83 and 43.44

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Solution

The fourth proportional to 74.53, 102.83 and 43.44 is: 59.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74.53 : 102.83 = 43.44 : x
  2. Step 2: Convert to fraction form
    74.53/102.83 = 43.44/x
  3. Step 3: Cross multiply
    74.53x = 102.83 × 43.44
  4. Step 4: Simplify right side
    74.53x = 4,466.94
  5. Step 5: Solve for x
    x = 4,466.94/74.53
  6. Step 6: Final answer
    x = 59.93

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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.