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Finding the Fourth Proportional to 88.96, 133.56 and 48.41

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Solution

The fourth proportional to 88.96, 133.56 and 48.41 is: 72.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    88.96 : 133.56 = 48.41 : x
  2. Step 2: Convert to fraction form
    88.96/133.56 = 48.41/x
  3. Step 3: Cross multiply
    88.96x = 133.56 × 48.41
  4. Step 4: Simplify right side
    88.96x = 6,465.42
  5. Step 5: Solve for x
    x = 6,465.42/88.96
  6. Step 6: Final answer
    x = 72.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.