Home / 51,519.81-77,286.20-18,232.05

Finding the Fourth Proportional to 51,519.81, 77,286.20 and 18,232.05

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Solution

The fourth proportional to 51,519.81, 77,286.20 and 18,232.05 is: 27,350.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,519.81 : 77,286.20 = 18,232.05 : x
  2. Step 2: Convert to fraction form
    51,519.81/77,286.20 = 18,232.05/x
  3. Step 3: Cross multiply
    51,519.81x = 77,286.20 × 18,232.05
  4. Step 4: Simplify right side
    51,519.81x = 1,409,085,771.55
  5. Step 5: Solve for x
    x = 1,409,085,771.55/51,519.81
  6. Step 6: Final answer
    x = 27,350.37

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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.