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Finding the Fourth Proportional to 52.96, 73.02 and 41.28

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Solution

The fourth proportional to 52.96, 73.02 and 41.28 is: 56.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52.96 : 73.02 = 41.28 : x
  2. Step 2: Convert to fraction form
    52.96/73.02 = 41.28/x
  3. Step 3: Cross multiply
    52.96x = 73.02 × 41.28
  4. Step 4: Simplify right side
    52.96x = 3,014.37
  5. Step 5: Solve for x
    x = 3,014.37/52.96
  6. Step 6: Final answer
    x = 56.92

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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.