Home / 79,546.35-109,763.40-49,320.65

Finding the Fourth Proportional to 79,546.35, 109,763.40 and 49,320.65

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Solution

The fourth proportional to 79,546.35, 109,763.40 and 49,320.65 is: 68,055.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,546.35 : 109,763.40 = 49,320.65 : x
  2. Step 2: Convert to fraction form
    79,546.35/109,763.40 = 49,320.65/x
  3. Step 3: Cross multiply
    79,546.35x = 109,763.40 × 49,320.65
  4. Step 4: Simplify right side
    79,546.35x = 5,413,602,076.15
  5. Step 5: Solve for x
    x = 5,413,602,076.15/79,546.35
  6. Step 6: Final answer
    x = 68,055.94

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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.