Home / 45,919.26-68,869.82-12,630.74

Finding the Fourth Proportional to 45,919.26, 68,869.82 and 12,630.74

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Solution

The fourth proportional to 45,919.26, 68,869.82 and 12,630.74 is: 18,943.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,919.26 : 68,869.82 = 12,630.74 : x
  2. Step 2: Convert to fraction form
    45,919.26/68,869.82 = 12,630.74/x
  3. Step 3: Cross multiply
    45,919.26x = 68,869.82 × 12,630.74
  4. Step 4: Simplify right side
    45,919.26x = 869,876,790.27
  5. Step 5: Solve for x
    x = 869,876,790.27/45,919.26
  6. Step 6: Final answer
    x = 18,943.62

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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.