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Finding the Fourth Proportional to 85,076.44, 127,620.52 and 28,893.62

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Solution

The fourth proportional to 85,076.44, 127,620.52 and 28,893.62 is: 43,342.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,076.44 : 127,620.52 = 28,893.62 : x
  2. Step 2: Convert to fraction form
    85,076.44/127,620.52 = 28,893.62/x
  3. Step 3: Cross multiply
    85,076.44x = 127,620.52 × 28,893.62
  4. Step 4: Simplify right side
    85,076.44x = 3,687,418,809.08
  5. Step 5: Solve for x
    x = 3,687,418,809.08/85,076.44
  6. Step 6: Final answer
    x = 43,342.42

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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.