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Finding the Fourth Proportional to 64.07, 95.30 and 62.39

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Solution

The fourth proportional to 64.07, 95.30 and 62.39 is: 92.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.07 : 95.30 = 62.39 : x
  2. Step 2: Convert to fraction form
    64.07/95.30 = 62.39/x
  3. Step 3: Cross multiply
    64.07x = 95.30 × 62.39
  4. Step 4: Simplify right side
    64.07x = 5,944.98
  5. Step 5: Solve for x
    x = 5,944.98/64.07
  6. Step 6: Final answer
    x = 92.80

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.