Home / 109,049.40-163,582.20-38,919.60

Finding the Fourth Proportional to 109,049.40, 163,582.20 and 38,919.60

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Solution

The fourth proportional to 109,049.40, 163,582.20 and 38,919.60 is: 58,382.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,049.40 : 163,582.20 = 38,919.60 : x
  2. Step 2: Convert to fraction form
    109,049.40/163,582.20 = 38,919.60/x
  3. Step 3: Cross multiply
    109,049.40x = 163,582.20 × 38,919.60
  4. Step 4: Simplify right side
    109,049.40x = 6,366,553,791.12
  5. Step 5: Solve for x
    x = 6,366,553,791.12/109,049.40
  6. Step 6: Final answer
    x = 58,382.29

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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.