Home / 68,722.57-103,099.99-21,335.24

Finding the Fourth Proportional to 68,722.57, 103,099.99 and 21,335.24

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Solution

The fourth proportional to 68,722.57, 103,099.99 and 21,335.24 is: 32,007.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,722.57 : 103,099.99 = 21,335.24 : x
  2. Step 2: Convert to fraction form
    68,722.57/103,099.99 = 21,335.24/x
  3. Step 3: Cross multiply
    68,722.57x = 103,099.99 × 21,335.24
  4. Step 4: Simplify right side
    68,722.57x = 2,199,663,275.06
  5. Step 5: Solve for x
    x = 2,199,663,275.06/68,722.57
  6. Step 6: Final answer
    x = 32,007.87

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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.