Home / 78,429.73-117,649.07-22,265.44

Finding the Fourth Proportional to 78,429.73, 117,649.07 and 22,265.44

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Solution

The fourth proportional to 78,429.73, 117,649.07 and 22,265.44 is: 33,399.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,429.73 : 117,649.07 = 22,265.44 : x
  2. Step 2: Convert to fraction form
    78,429.73/117,649.07 = 22,265.44/x
  3. Step 3: Cross multiply
    78,429.73x = 117,649.07 × 22,265.44
  4. Step 4: Simplify right side
    78,429.73x = 2,619,508,309.14
  5. Step 5: Solve for x
    x = 2,619,508,309.14/78,429.73
  6. Step 6: Final answer
    x = 33,399.43

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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.