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Finding the Fourth Proportional to 43.57, 59.73 and 43.03

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Solution

The fourth proportional to 43.57, 59.73 and 43.03 is: 58.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.57 : 59.73 = 43.03 : x
  2. Step 2: Convert to fraction form
    43.57/59.73 = 43.03/x
  3. Step 3: Cross multiply
    43.57x = 59.73 × 43.03
  4. Step 4: Simplify right side
    43.57x = 2,570.18
  5. Step 5: Solve for x
    x = 2,570.18/43.57
  6. Step 6: Final answer
    x = 58.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.