Home / 76,929.36-115,198.02-65,119.56

Finding the Fourth Proportional to 76,929.36, 115,198.02 and 65,119.56

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Solution

The fourth proportional to 76,929.36, 115,198.02 and 65,119.56 is: 97,513.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,929.36 : 115,198.02 = 65,119.56 : x
  2. Step 2: Convert to fraction form
    76,929.36/115,198.02 = 65,119.56/x
  3. Step 3: Cross multiply
    76,929.36x = 115,198.02 × 65,119.56
  4. Step 4: Simplify right side
    76,929.36x = 7,501,644,375.27
  5. Step 5: Solve for x
    x = 7,501,644,375.27/76,929.36
  6. Step 6: Final answer
    x = 97,513.41

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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.