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Finding the Fourth Proportional to 48.34, 67.12 and 47.59

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Solution

The fourth proportional to 48.34, 67.12 and 47.59 is: 66.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    48.34 : 67.12 = 47.59 : x
  2. Step 2: Convert to fraction form
    48.34/67.12 = 47.59/x
  3. Step 3: Cross multiply
    48.34x = 67.12 × 47.59
  4. Step 4: Simplify right side
    48.34x = 3,194.24
  5. Step 5: Solve for x
    x = 3,194.24/48.34
  6. Step 6: Final answer
    x = 66.08

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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.