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Finding the Fourth Proportional to 63.58, 94.82 and 60.40

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Solution

The fourth proportional to 63.58, 94.82 and 60.40 is: 90.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63.58 : 94.82 = 60.40 : x
  2. Step 2: Convert to fraction form
    63.58/94.82 = 60.40/x
  3. Step 3: Cross multiply
    63.58x = 94.82 × 60.40
  4. Step 4: Simplify right side
    63.58x = 5,727.13
  5. Step 5: Solve for x
    x = 5,727.13/63.58
  6. Step 6: Final answer
    x = 90.08

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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.