Home / 49,742.12-74,605.82-18,144.78

Finding the Fourth Proportional to 49,742.12, 74,605.82 and 18,144.78

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Solution

The fourth proportional to 49,742.12, 74,605.82 and 18,144.78 is: 27,214.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,742.12 : 74,605.82 = 18,144.78 : x
  2. Step 2: Convert to fraction form
    49,742.12/74,605.82 = 18,144.78/x
  3. Step 3: Cross multiply
    49,742.12x = 74,605.82 × 18,144.78
  4. Step 4: Simplify right side
    49,742.12x = 1,353,706,099.90
  5. Step 5: Solve for x
    x = 1,353,706,099.90/49,742.12
  6. Step 6: Final answer
    x = 27,214.49

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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.