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Finding the Fourth Proportional to 50,674.56, 69,931 and 28,318.56

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Solution

The fourth proportional to 50,674.56, 69,931 and 28,318.56 is: 39,079.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,674.56 : 69,931 = 28,318.56 : x
  2. Step 2: Convert to fraction form
    50,674.56/69,931 = 28,318.56/x
  3. Step 3: Cross multiply
    50,674.56x = 69,931 × 28,318.56
  4. Step 4: Simplify right side
    50,674.56x = 1,980,345,219.36
  5. Step 5: Solve for x
    x = 1,980,345,219.36/50,674.56
  6. Step 6: Final answer
    x = 39,079.67

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.