Home / 68,919.41-103,399.87-21,532.59

Finding the Fourth Proportional to 68,919.41, 103,399.87 and 21,532.59

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Solution

The fourth proportional to 68,919.41, 103,399.87 and 21,532.59 is: 32,305.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,919.41 : 103,399.87 = 21,532.59 : x
  2. Step 2: Convert to fraction form
    68,919.41/103,399.87 = 21,532.59/x
  3. Step 3: Cross multiply
    68,919.41x = 103,399.87 × 21,532.59
  4. Step 4: Simplify right side
    68,919.41x = 2,226,467,006.76
  5. Step 5: Solve for x
    x = 2,226,467,006.76/68,919.41
  6. Step 6: Final answer
    x = 32,305.37

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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.