Home / 51,629.18-77,428.26-18,344.86

Finding the Fourth Proportional to 51,629.18, 77,428.26 and 18,344.86

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Solution

The fourth proportional to 51,629.18, 77,428.26 and 18,344.86 is: 27,511.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,629.18 : 77,428.26 = 18,344.86 : x
  2. Step 2: Convert to fraction form
    51,629.18/77,428.26 = 18,344.86/x
  3. Step 3: Cross multiply
    51,629.18x = 77,428.26 × 18,344.86
  4. Step 4: Simplify right side
    51,629.18x = 1,420,410,589.74
  5. Step 5: Solve for x
    x = 1,420,410,589.74/51,629.18
  6. Step 6: Final answer
    x = 27,511.78

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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.