Home / 68,581.35-102,879.32-21,823.29

Finding the Fourth Proportional to 68,581.35, 102,879.32 and 21,823.29

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Solution

The fourth proportional to 68,581.35, 102,879.32 and 21,823.29 is: 32,737.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,581.35 : 102,879.32 = 21,823.29 : x
  2. Step 2: Convert to fraction form
    68,581.35/102,879.32 = 21,823.29/x
  3. Step 3: Cross multiply
    68,581.35x = 102,879.32 × 21,823.29
  4. Step 4: Simplify right side
    68,581.35x = 2,245,165,126.25
  5. Step 5: Solve for x
    x = 2,245,165,126.25/68,581.35
  6. Step 6: Final answer
    x = 32,737.25

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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.