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Finding the Fourth Proportional to 43.24, 59.61 and 40.74

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Solution

The fourth proportional to 43.24, 59.61 and 40.74 is: 56.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    43.24 : 59.61 = 40.74 : x
  2. Step 2: Convert to fraction form
    43.24/59.61 = 40.74/x
  3. Step 3: Cross multiply
    43.24x = 59.61 × 40.74
  4. Step 4: Simplify right side
    43.24x = 2,428.51
  5. Step 5: Solve for x
    x = 2,428.51/43.24
  6. Step 6: Final answer
    x = 56.16

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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.