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Finding the Fourth Proportional to 43.39, 59.93 and 39.51

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Solution

The fourth proportional to 43.39, 59.93 and 39.51 is: 54.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.39 : 59.93 = 39.51 : x
  2. Step 2: Convert to fraction form
    43.39/59.93 = 39.51/x
  3. Step 3: Cross multiply
    43.39x = 59.93 × 39.51
  4. Step 4: Simplify right side
    43.39x = 2,367.83
  5. Step 5: Solve for x
    x = 2,367.83/43.39
  6. Step 6: Final answer
    x = 54.57

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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.