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Finding the Fourth Proportional to 79.22, 118.32 and 62.06

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Solution

The fourth proportional to 79.22, 118.32 and 62.06 is: 92.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.22 : 118.32 = 62.06 : x
  2. Step 2: Convert to fraction form
    79.22/118.32 = 62.06/x
  3. Step 3: Cross multiply
    79.22x = 118.32 × 62.06
  4. Step 4: Simplify right side
    79.22x = 7,342.94
  5. Step 5: Solve for x
    x = 7,342.94/79.22
  6. Step 6: Final answer
    x = 92.69

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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.