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Finding the Fourth Proportional to 73.62, 101.52 and 62.64

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Solution

The fourth proportional to 73.62, 101.52 and 62.64 is: 86.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    73.62 : 101.52 = 62.64 : x
  2. Step 2: Convert to fraction form
    73.62/101.52 = 62.64/x
  3. Step 3: Cross multiply
    73.62x = 101.52 × 62.64
  4. Step 4: Simplify right side
    73.62x = 6,359.21
  5. Step 5: Solve for x
    x = 6,359.21/73.62
  6. Step 6: Final answer
    x = 86.38

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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.