Home / 66,115.20-91,274.56-50,974.64

Finding the Fourth Proportional to 66,115.20, 91,274.56 and 50,974.64

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Solution

The fourth proportional to 66,115.20, 91,274.56 and 50,974.64 is: 70,372.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,115.20 : 91,274.56 = 50,974.64 : x
  2. Step 2: Convert to fraction form
    66,115.20/91,274.56 = 50,974.64/x
  3. Step 3: Cross multiply
    66,115.20x = 91,274.56 × 50,974.64
  4. Step 4: Simplify right side
    66,115.20x = 4,652,687,837.16
  5. Step 5: Solve for x
    x = 4,652,687,837.16/66,115.20
  6. Step 6: Final answer
    x = 70,372.44

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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.