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Finding the Fourth Proportional to 62.29, 93.40 and 28.06

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Solution

The fourth proportional to 62.29, 93.40 and 28.06 is: 42.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.29 : 93.40 = 28.06 : x
  2. Step 2: Convert to fraction form
    62.29/93.40 = 28.06/x
  3. Step 3: Cross multiply
    62.29x = 93.40 × 28.06
  4. Step 4: Simplify right side
    62.29x = 2,620.80
  5. Step 5: Solve for x
    x = 2,620.80/62.29
  6. Step 6: Final answer
    x = 42.07

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.