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Finding the Fourth Proportional to 83,635.92, 125,478.50 and 33,690.31

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Solution

The fourth proportional to 83,635.92, 125,478.50 and 33,690.31 is: 50,545.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,635.92 : 125,478.50 = 33,690.31 : x
  2. Step 2: Convert to fraction form
    83,635.92/125,478.50 = 33,690.31/x
  3. Step 3: Cross multiply
    83,635.92x = 125,478.50 × 33,690.31
  4. Step 4: Simplify right side
    83,635.92x = 4,227,409,563.34
  5. Step 5: Solve for x
    x = 4,227,409,563.34/83,635.92
  6. Step 6: Final answer
    x = 50,545.38

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.