Home / 70,286.20-105,418.32-23,539.48

Finding the Fourth Proportional to 70,286.20, 105,418.32 and 23,539.48

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Solution

The fourth proportional to 70,286.20, 105,418.32 and 23,539.48 is: 35,305.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,286.20 : 105,418.32 = 23,539.48 : x
  2. Step 2: Convert to fraction form
    70,286.20/105,418.32 = 23,539.48/x
  3. Step 3: Cross multiply
    70,286.20x = 105,418.32 × 23,539.48
  4. Step 4: Simplify right side
    70,286.20x = 2,481,492,435.27
  5. Step 5: Solve for x
    x = 2,481,492,435.27/70,286.20
  6. Step 6: Final answer
    x = 35,305.54

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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.