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Finding the Fourth Proportional to 43.32, 59.81 and 35.64

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Solution

The fourth proportional to 43.32, 59.81 and 35.64 is: 49.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.32 : 59.81 = 35.64 : x
  2. Step 2: Convert to fraction form
    43.32/59.81 = 35.64/x
  3. Step 3: Cross multiply
    43.32x = 59.81 × 35.64
  4. Step 4: Simplify right side
    43.32x = 2,131.63
  5. Step 5: Solve for x
    x = 2,131.63/43.32
  6. Step 6: Final answer
    x = 49.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.