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Finding the Fourth Proportional to 32.40, 45.02 and 32.08

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Solution

The fourth proportional to 32.40, 45.02 and 32.08 is: 44.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    32.40 : 45.02 = 32.08 : x
  2. Step 2: Convert to fraction form
    32.40/45.02 = 32.08/x
  3. Step 3: Cross multiply
    32.40x = 45.02 × 32.08
  4. Step 4: Simplify right side
    32.40x = 1,444.24
  5. Step 5: Solve for x
    x = 1,444.24/32.40
  6. Step 6: Final answer
    x = 44.58

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.