Home / 83,388.58-125,112.23-55,419.68

Finding the Fourth Proportional to 83,388.58, 125,112.23 and 55,419.68

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Solution

The fourth proportional to 83,388.58, 125,112.23 and 55,419.68 is: 83,149.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,388.58 : 125,112.23 = 55,419.68 : x
  2. Step 2: Convert to fraction form
    83,388.58/125,112.23 = 55,419.68/x
  3. Step 3: Cross multiply
    83,388.58x = 125,112.23 × 55,419.68
  4. Step 4: Simplify right side
    83,388.58x = 6,933,679,473.59
  5. Step 5: Solve for x
    x = 6,933,679,473.59/83,388.58
  6. Step 6: Final answer
    x = 83,149.03

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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.