Home / 90,855.56-125,379.78-50,568.64

Finding the Fourth Proportional to 90,855.56, 125,379.78 and 50,568.64

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Solution

The fourth proportional to 90,855.56, 125,379.78 and 50,568.64 is: 69,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,855.56 : 125,379.78 = 50,568.64 : x
  2. Step 2: Convert to fraction form
    90,855.56/125,379.78 = 50,568.64/x
  3. Step 3: Cross multiply
    90,855.56x = 125,379.78 × 50,568.64
  4. Step 4: Simplify right side
    90,855.56x = 6,340,284,958.10
  5. Step 5: Solve for x
    x = 6,340,284,958.10/90,855.56
  6. Step 6: Final answer
    x = 69,784.23

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Why These Related Problems?

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