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Finding the Fourth Proportional to 43,353.51, 65,028.79 and 18,377.49

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Solution

The fourth proportional to 43,353.51, 65,028.79 and 18,377.49 is: 27,565.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,353.51 : 65,028.79 = 18,377.49 : x
  2. Step 2: Convert to fraction form
    43,353.51/65,028.79 = 18,377.49/x
  3. Step 3: Cross multiply
    43,353.51x = 65,028.79 × 18,377.49
  4. Step 4: Simplify right side
    43,353.51x = 1,195,065,937.94
  5. Step 5: Solve for x
    x = 1,195,065,937.94/43,353.51
  6. Step 6: Final answer
    x = 27,565.61

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.