Home / 68,225.25-102,341.52-21,481.77

Finding the Fourth Proportional to 68,225.25, 102,341.52 and 21,481.77

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Solution

The fourth proportional to 68,225.25, 102,341.52 and 21,481.77 is: 32,223.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,225.25 : 102,341.52 = 21,481.77 : x
  2. Step 2: Convert to fraction form
    68,225.25/102,341.52 = 21,481.77/x
  3. Step 3: Cross multiply
    68,225.25x = 102,341.52 × 21,481.77
  4. Step 4: Simplify right side
    68,225.25x = 2,198,476,994.09
  5. Step 5: Solve for x
    x = 2,198,476,994.09/68,225.25
  6. Step 6: Final answer
    x = 32,223.80

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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.