Home / 68,749.20-102,922.20-51,296.40

Finding the Fourth Proportional to 68,749.20, 102,922.20 and 51,296.40

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Solution

The fourth proportional to 68,749.20, 102,922.20 and 51,296.40 is: 76,794.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,749.20 : 102,922.20 = 51,296.40 : x
  2. Step 2: Convert to fraction form
    68,749.20/102,922.20 = 51,296.40/x
  3. Step 3: Cross multiply
    68,749.20x = 102,922.20 × 51,296.40
  4. Step 4: Simplify right side
    68,749.20x = 5,279,538,340.08
  5. Step 5: Solve for x
    x = 5,279,538,340.08/68,749.20
  6. Step 6: Final answer
    x = 76,794.18

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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.