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Finding the Fourth Proportional to 85,074.88, 127,612.32 and 22,743.76

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Solution

The fourth proportional to 85,074.88, 127,612.32 and 22,743.76 is: 34,115.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,074.88 : 127,612.32 = 22,743.76 : x
  2. Step 2: Convert to fraction form
    85,074.88/127,612.32 = 22,743.76/x
  3. Step 3: Cross multiply
    85,074.88x = 127,612.32 × 22,743.76
  4. Step 4: Simplify right side
    85,074.88x = 2,902,383,979.12
  5. Step 5: Solve for x
    x = 2,902,383,979.12/85,074.88
  6. Step 6: Final answer
    x = 34,115.64

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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.