Home / 68,122.01-102,171.22-20,725.62

Finding the Fourth Proportional to 68,122.01, 102,171.22 and 20,725.62

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Solution

The fourth proportional to 68,122.01, 102,171.22 and 20,725.62 is: 31,084.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,122.01 : 102,171.22 = 20,725.62 : x
  2. Step 2: Convert to fraction form
    68,122.01/102,171.22 = 20,725.62/x
  3. Step 3: Cross multiply
    68,122.01x = 102,171.22 × 20,725.62
  4. Step 4: Simplify right side
    68,122.01x = 2,117,561,445.70
  5. Step 5: Solve for x
    x = 2,117,561,445.70/68,122.01
  6. Step 6: Final answer
    x = 31,084.84

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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.