Home / 66,906.28-100,372.38-25,382.44

Finding the Fourth Proportional to 66,906.28, 100,372.38 and 25,382.44

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Solution

The fourth proportional to 66,906.28, 100,372.38 and 25,382.44 is: 38,078.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,906.28 : 100,372.38 = 25,382.44 : x
  2. Step 2: Convert to fraction form
    66,906.28/100,372.38 = 25,382.44/x
  3. Step 3: Cross multiply
    66,906.28x = 100,372.38 × 25,382.44
  4. Step 4: Simplify right side
    66,906.28x = 2,547,695,913.01
  5. Step 5: Solve for x
    x = 2,547,695,913.01/66,906.28
  6. Step 6: Final answer
    x = 38,078.58

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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.