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Finding the Fourth Proportional to 79.00, 108.97 and 46.24

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Solution

The fourth proportional to 79.00, 108.97 and 46.24 is: 63.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    79.00 : 108.97 = 46.24 : x
  2. Step 2: Convert to fraction form
    79.00/108.97 = 46.24/x
  3. Step 3: Cross multiply
    79.00x = 108.97 × 46.24
  4. Step 4: Simplify right side
    79.00x = 5,038.54
  5. Step 5: Solve for x
    x = 5,038.54/79.00
  6. Step 6: Final answer
    x = 63.78

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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.