Home / 68,120.82-102,181.14-21,377.34

Finding the Fourth Proportional to 68,120.82, 102,181.14 and 21,377.34

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Solution

The fourth proportional to 68,120.82, 102,181.14 and 21,377.34 is: 32,065.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,120.82 : 102,181.14 = 21,377.34 : x
  2. Step 2: Convert to fraction form
    68,120.82/102,181.14 = 21,377.34/x
  3. Step 3: Cross multiply
    68,120.82x = 102,181.14 × 21,377.34
  4. Step 4: Simplify right side
    68,120.82x = 2,184,360,971.37
  5. Step 5: Solve for x
    x = 2,184,360,971.37/68,120.82
  6. Step 6: Final answer
    x = 32,065.98

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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.