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Finding the Fourth Proportional to 64.59, 97.39 and 62.49

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Solution

The fourth proportional to 64.59, 97.39 and 62.49 is: 94.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.59 : 97.39 = 62.49 : x
  2. Step 2: Convert to fraction form
    64.59/97.39 = 62.49/x
  3. Step 3: Cross multiply
    64.59x = 97.39 × 62.49
  4. Step 4: Simplify right side
    64.59x = 6,085.90
  5. Step 5: Solve for x
    x = 6,085.90/64.59
  6. Step 6: Final answer
    x = 94.22

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.