Home / 76,936.20-115,404.30-73,864.20

Finding the Fourth Proportional to 76,936.20, 115,404.30 and 73,864.20

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Solution

The fourth proportional to 76,936.20, 115,404.30 and 73,864.20 is: 110,796.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,936.20 : 115,404.30 = 73,864.20 : x
  2. Step 2: Convert to fraction form
    76,936.20/115,404.30 = 73,864.20/x
  3. Step 3: Cross multiply
    76,936.20x = 115,404.30 × 73,864.20
  4. Step 4: Simplify right side
    76,936.20x = 8,524,246,296.06
  5. Step 5: Solve for x
    x = 8,524,246,296.06/76,936.20
  6. Step 6: Final answer
    x = 110,796.30

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1.5x scale

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.