Home / 68,727.84-103,095.18-21,375.19

Finding the Fourth Proportional to 68,727.84, 103,095.18 and 21,375.19

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Solution

The fourth proportional to 68,727.84, 103,095.18 and 21,375.19 is: 32,063.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,727.84 : 103,095.18 = 21,375.19 : x
  2. Step 2: Convert to fraction form
    68,727.84/103,095.18 = 21,375.19/x
  3. Step 3: Cross multiply
    68,727.84x = 103,095.18 × 21,375.19
  4. Step 4: Simplify right side
    68,727.84x = 2,203,679,189.45
  5. Step 5: Solve for x
    x = 2,203,679,189.45/68,727.84
  6. Step 6: Final answer
    x = 32,063.85

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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.