Home / 68,110.35-102,181.86-21,363.21

Finding the Fourth Proportional to 68,110.35, 102,181.86 and 21,363.21

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Solution

The fourth proportional to 68,110.35, 102,181.86 and 21,363.21 is: 32,049.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,110.35 : 102,181.86 = 21,363.21 : x
  2. Step 2: Convert to fraction form
    68,110.35/102,181.86 = 21,363.21/x
  3. Step 3: Cross multiply
    68,110.35x = 102,181.86 × 21,363.21
  4. Step 4: Simplify right side
    68,110.35x = 2,182,932,533.37
  5. Step 5: Solve for x
    x = 2,182,932,533.37/68,110.35
  6. Step 6: Final answer
    x = 32,049.94

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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.