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Finding the Fourth Proportional to 83,837.44, 125,755.75 and 20,657.44

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Solution

The fourth proportional to 83,837.44, 125,755.75 and 20,657.44 is: 30,986.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,837.44 : 125,755.75 = 20,657.44 : x
  2. Step 2: Convert to fraction form
    83,837.44/125,755.75 = 20,657.44/x
  3. Step 3: Cross multiply
    83,837.44x = 125,755.75 × 20,657.44
  4. Step 4: Simplify right side
    83,837.44x = 2,597,791,860.28
  5. Step 5: Solve for x
    x = 2,597,791,860.28/83,837.44
  6. Step 6: Final answer
    x = 30,986.06

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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.