Home / 76,921.70-115,396.09-26,308.83

Finding the Fourth Proportional to 76,921.70, 115,396.09 and 26,308.83

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Solution

The fourth proportional to 76,921.70, 115,396.09 and 26,308.83 is: 39,467.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,921.70 : 115,396.09 = 26,308.83 : x
  2. Step 2: Convert to fraction form
    76,921.70/115,396.09 = 26,308.83/x
  3. Step 3: Cross multiply
    76,921.70x = 115,396.09 × 26,308.83
  4. Step 4: Simplify right side
    76,921.70x = 3,035,936,114.47
  5. Step 5: Solve for x
    x = 3,035,936,114.47/76,921.70
  6. Step 6: Final answer
    x = 39,467.88

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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.