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Finding the Fourth Proportional to 43.33, 64.70 and 36.57

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Solution

The fourth proportional to 43.33, 64.70 and 36.57 is: 54.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.33 : 64.70 = 36.57 : x
  2. Step 2: Convert to fraction form
    43.33/64.70 = 36.57/x
  3. Step 3: Cross multiply
    43.33x = 64.70 × 36.57
  4. Step 4: Simplify right side
    43.33x = 2,366.08
  5. Step 5: Solve for x
    x = 2,366.08/43.33
  6. Step 6: Final answer
    x = 54.61

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.