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Finding the Fourth Proportional to 45.82, 63.12 and 32.64

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Solution

The fourth proportional to 45.82, 63.12 and 32.64 is: 44.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45.82 : 63.12 = 32.64 : x
  2. Step 2: Convert to fraction form
    45.82/63.12 = 32.64/x
  3. Step 3: Cross multiply
    45.82x = 63.12 × 32.64
  4. Step 4: Simplify right side
    45.82x = 2,060.24
  5. Step 5: Solve for x
    x = 2,060.24/45.82
  6. Step 6: Final answer
    x = 44.96

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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.