Home / 83,622.19-115,380.33-49,641.88

Finding the Fourth Proportional to 83,622.19, 115,380.33 and 49,641.88

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Solution

The fourth proportional to 83,622.19, 115,380.33 and 49,641.88 is: 68,494.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,622.19 : 115,380.33 = 49,641.88 : x
  2. Step 2: Convert to fraction form
    83,622.19/115,380.33 = 49,641.88/x
  3. Step 3: Cross multiply
    83,622.19x = 115,380.33 × 49,641.88
  4. Step 4: Simplify right side
    83,622.19x = 5,727,696,248.01
  5. Step 5: Solve for x
    x = 5,727,696,248.01/83,622.19
  6. Step 6: Final answer
    x = 68,494.93

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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.