Home / 51,947.46-77,930.91-20,785.14

Finding the Fourth Proportional to 51,947.46, 77,930.91 and 20,785.14

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Solution

The fourth proportional to 51,947.46, 77,930.91 and 20,785.14 is: 31,181.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,947.46 : 77,930.91 = 20,785.14 : x
  2. Step 2: Convert to fraction form
    51,947.46/77,930.91 = 20,785.14/x
  3. Step 3: Cross multiply
    51,947.46x = 77,930.91 × 20,785.14
  4. Step 4: Simplify right side
    51,947.46x = 1,619,804,874.68
  5. Step 5: Solve for x
    x = 1,619,804,874.68/51,947.46
  6. Step 6: Final answer
    x = 31,181.60

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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.