Home / 43,314.12-64,974.87-12,149.37

Finding the Fourth Proportional to 43,314.12, 64,974.87 and 12,149.37

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Solution

The fourth proportional to 43,314.12, 64,974.87 and 12,149.37 is: 18,225.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,314.12 : 64,974.87 = 12,149.37 : x
  2. Step 2: Convert to fraction form
    43,314.12/64,974.87 = 12,149.37/x
  3. Step 3: Cross multiply
    43,314.12x = 64,974.87 × 12,149.37
  4. Step 4: Simplify right side
    43,314.12x = 789,403,736.33
  5. Step 5: Solve for x
    x = 789,403,736.33/43,314.12
  6. Step 6: Final answer
    x = 18,225.09

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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.