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Finding the Fourth Proportional to 62.30, 86.04 and 45.96

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Solution

The fourth proportional to 62.30, 86.04 and 45.96 is: 63.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.30 : 86.04 = 45.96 : x
  2. Step 2: Convert to fraction form
    62.30/86.04 = 45.96/x
  3. Step 3: Cross multiply
    62.30x = 86.04 × 45.96
  4. Step 4: Simplify right side
    62.30x = 3,954.40
  5. Step 5: Solve for x
    x = 3,954.40/62.30
  6. Step 6: Final answer
    x = 63.48

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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.