Home / 83,845.91-115,668.48-49,835.33

Finding the Fourth Proportional to 83,845.91, 115,668.48 and 49,835.33

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Solution

The fourth proportional to 83,845.91, 115,668.48 and 49,835.33 is: 68,749.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,845.91 : 115,668.48 = 49,835.33 : x
  2. Step 2: Convert to fraction form
    83,845.91/115,668.48 = 49,835.33/x
  3. Step 3: Cross multiply
    83,845.91x = 115,668.48 × 49,835.33
  4. Step 4: Simplify right side
    83,845.91x = 5,764,376,871.40
  5. Step 5: Solve for x
    x = 5,764,376,871.40/83,845.91
  6. Step 6: Final answer
    x = 68,749.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.