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Finding the Fourth Proportional to 85,012.67, 127,514.39 and 25,843.73

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Solution

The fourth proportional to 85,012.67, 127,514.39 and 25,843.73 is: 38,764.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,012.67 : 127,514.39 = 25,843.73 : x
  2. Step 2: Convert to fraction form
    85,012.67/127,514.39 = 25,843.73/x
  3. Step 3: Cross multiply
    85,012.67x = 127,514.39 × 25,843.73
  4. Step 4: Simplify right side
    85,012.67x = 3,295,446,699.48
  5. Step 5: Solve for x
    x = 3,295,446,699.48/85,012.67
  6. Step 6: Final answer
    x = 38,764.18

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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.