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Finding the Fourth Proportional to 85,333.60, 128,020.92 and 32,743.09

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Solution

The fourth proportional to 85,333.60, 128,020.92 and 32,743.09 is: 49,122.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,333.60 : 128,020.92 = 32,743.09 : x
  2. Step 2: Convert to fraction form
    85,333.60/128,020.92 = 32,743.09/x
  3. Step 3: Cross multiply
    85,333.60x = 128,020.92 × 32,743.09
  4. Step 4: Simplify right side
    85,333.60x = 4,191,800,505.44
  5. Step 5: Solve for x
    x = 4,191,800,505.44/85,333.60
  6. Step 6: Final answer
    x = 49,122.51

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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.