Home / 83,387.58-125,110.73-55,418.68

Finding the Fourth Proportional to 83,387.58, 125,110.73 and 55,418.68

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Solution

The fourth proportional to 83,387.58, 125,110.73 and 55,418.68 is: 83,147.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,387.58 : 125,110.73 = 55,418.68 : x
  2. Step 2: Convert to fraction form
    83,387.58/125,110.73 = 55,418.68/x
  3. Step 3: Cross multiply
    83,387.58x = 125,110.73 × 55,418.68
  4. Step 4: Simplify right side
    83,387.58x = 6,933,471,493.64
  5. Step 5: Solve for x
    x = 6,933,471,493.64/83,387.58
  6. Step 6: Final answer
    x = 83,147.54

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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.