Home / 83,798.08-115,634.50-49,337.36

Finding the Fourth Proportional to 83,798.08, 115,634.50 and 49,337.36

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Solution

The fourth proportional to 83,798.08, 115,634.50 and 49,337.36 is: 68,081.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,798.08 : 115,634.50 = 49,337.36 : x
  2. Step 2: Convert to fraction form
    83,798.08/115,634.50 = 49,337.36/x
  3. Step 3: Cross multiply
    83,798.08x = 115,634.50 × 49,337.36
  4. Step 4: Simplify right side
    83,798.08x = 5,705,100,954.92
  5. Step 5: Solve for x
    x = 5,705,100,954.92/83,798.08
  6. Step 6: Final answer
    x = 68,081.52

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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.