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Finding the Fourth Proportional to 64.62, 97.27 and 58

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Solution

The fourth proportional to 64.62, 97.27 and 58 is: 87.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    64.62 : 97.27 = 58 : x
  2. Step 2: Convert to fraction form
    64.62/97.27 = 58/x
  3. Step 3: Cross multiply
    64.62x = 97.27 × 58
  4. Step 4: Simplify right side
    64.62x = 5,641.66
  5. Step 5: Solve for x
    x = 5,641.66/64.62
  6. Step 6: Final answer
    x = 87.31

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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.