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Finding the Fourth Proportional to 62.80, 93.78 and 62.32

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Solution

The fourth proportional to 62.80, 93.78 and 62.32 is: 93.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    62.80 : 93.78 = 62.32 : x
  2. Step 2: Convert to fraction form
    62.80/93.78 = 62.32/x
  3. Step 3: Cross multiply
    62.80x = 93.78 × 62.32
  4. Step 4: Simplify right side
    62.80x = 5,844.37
  5. Step 5: Solve for x
    x = 5,844.37/62.80
  6. Step 6: Final answer
    x = 93.06

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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.