Home / 50,912.12-76,379.22-21,314.72

Finding the Fourth Proportional to 50,912.12, 76,379.22 and 21,314.72

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Solution

The fourth proportional to 50,912.12, 76,379.22 and 21,314.72 is: 31,976.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,912.12 : 76,379.22 = 21,314.72 : x
  2. Step 2: Convert to fraction form
    50,912.12/76,379.22 = 21,314.72/x
  3. Step 3: Cross multiply
    50,912.12x = 76,379.22 × 21,314.72
  4. Step 4: Simplify right side
    50,912.12x = 1,628,001,688.12
  5. Step 5: Solve for x
    x = 1,628,001,688.12/50,912.12
  6. Step 6: Final answer
    x = 31,976.70

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