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Finding the Fourth Proportional to 32.08, 47.79 and 30.54

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Solution

The fourth proportional to 32.08, 47.79 and 30.54 is: 45.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.08 : 47.79 = 30.54 : x
  2. Step 2: Convert to fraction form
    32.08/47.79 = 30.54/x
  3. Step 3: Cross multiply
    32.08x = 47.79 × 30.54
  4. Step 4: Simplify right side
    32.08x = 1,459.51
  5. Step 5: Solve for x
    x = 1,459.51/32.08
  6. Step 6: Final answer
    x = 45.50

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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.