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Finding the Fourth Proportional to 46.32, 69.36 and 43.74

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Solution

The fourth proportional to 46.32, 69.36 and 43.74 is: 65.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    46.32 : 69.36 = 43.74 : x
  2. Step 2: Convert to fraction form
    46.32/69.36 = 43.74/x
  3. Step 3: Cross multiply
    46.32x = 69.36 × 43.74
  4. Step 4: Simplify right side
    46.32x = 3,033.81
  5. Step 5: Solve for x
    x = 3,033.81/46.32
  6. Step 6: Final answer
    x = 65.50

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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.