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Finding the Fourth Proportional to 63.64, 88.28 and 62.04

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Solution

The fourth proportional to 63.64, 88.28 and 62.04 is: 86.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.64 : 88.28 = 62.04 : x
  2. Step 2: Convert to fraction form
    63.64/88.28 = 62.04/x
  3. Step 3: Cross multiply
    63.64x = 88.28 × 62.04
  4. Step 4: Simplify right side
    63.64x = 5,476.89
  5. Step 5: Solve for x
    x = 5,476.89/63.64
  6. Step 6: Final answer
    x = 86.06

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.