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Finding the Fourth Proportional to 46.26, 69.36 and 39.06

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Solution

The fourth proportional to 46.26, 69.36 and 39.06 is: 58.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.26 : 69.36 = 39.06 : x
  2. Step 2: Convert to fraction form
    46.26/69.36 = 39.06/x
  3. Step 3: Cross multiply
    46.26x = 69.36 × 39.06
  4. Step 4: Simplify right side
    46.26x = 2,709.20
  5. Step 5: Solve for x
    x = 2,709.20/46.26
  6. Step 6: Final answer
    x = 58.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.