Home / 68,826.32-103,239.20-45,447.20

Finding the Fourth Proportional to 68,826.32, 103,239.20 and 45,447.20

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Solution

The fourth proportional to 68,826.32, 103,239.20 and 45,447.20 is: 68,170.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,826.32 : 103,239.20 = 45,447.20 : x
  2. Step 2: Convert to fraction form
    68,826.32/103,239.20 = 45,447.20/x
  3. Step 3: Cross multiply
    68,826.32x = 103,239.20 × 45,447.20
  4. Step 4: Simplify right side
    68,826.32x = 4,691,932,570.24
  5. Step 5: Solve for x
    x = 4,691,932,570.24/68,826.32
  6. Step 6: Final answer
    x = 68,170.62

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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.