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Finding the Fourth Proportional to 83,976.60, 125,964.90 and 27,801.60

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Solution

The fourth proportional to 83,976.60, 125,964.90 and 27,801.60 is: 41,702.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,976.60 : 125,964.90 = 27,801.60 : x
  2. Step 2: Convert to fraction form
    83,976.60/125,964.90 = 27,801.60/x
  3. Step 3: Cross multiply
    83,976.60x = 125,964.90 × 27,801.60
  4. Step 4: Simplify right side
    83,976.60x = 3,502,025,763.84
  5. Step 5: Solve for x
    x = 3,502,025,763.84/83,976.60
  6. Step 6: Final answer
    x = 41,702.40

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Similar ratio
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1.5x scale

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.