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Finding the Fourth Proportional to 96, 132.48 and 66.96

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Solution

The fourth proportional to 96, 132.48 and 66.96 is: 92.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    96 : 132.48 = 66.96 : x
  2. Step 2: Convert to fraction form
    96/132.48 = 66.96/x
  3. Step 3: Cross multiply
    96x = 132.48 × 66.96
  4. Step 4: Simplify right side
    96x = 8,870.86
  5. Step 5: Solve for x
    x = 8,870.86/96
  6. Step 6: Final answer
    x = 92.40

Related Problems

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1.5x scale

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.