Home / 68,949.89-95,161.92-64,447.40

Finding the Fourth Proportional to 68,949.89, 95,161.92 and 64,447.40

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Solution

The fourth proportional to 68,949.89, 95,161.92 and 64,447.40 is: 88,947.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,949.89 : 95,161.92 = 64,447.40 : x
  2. Step 2: Convert to fraction form
    68,949.89/95,161.92 = 64,447.40/x
  3. Step 3: Cross multiply
    68,949.89x = 95,161.92 × 64,447.40
  4. Step 4: Simplify right side
    68,949.89x = 6,132,937,847.20
  5. Step 5: Solve for x
    x = 6,132,937,847.20/68,949.89
  6. Step 6: Final answer
    x = 88,947.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.