Home / 68,116.32-102,174.39-21,372.84

Finding the Fourth Proportional to 68,116.32, 102,174.39 and 21,372.84

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Solution

The fourth proportional to 68,116.32, 102,174.39 and 21,372.84 is: 32,059.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,116.32 : 102,174.39 = 21,372.84 : x
  2. Step 2: Convert to fraction form
    68,116.32/102,174.39 = 21,372.84/x
  3. Step 3: Cross multiply
    68,116.32x = 102,174.39 × 21,372.84
  4. Step 4: Simplify right side
    68,116.32x = 2,183,756,889.57
  5. Step 5: Solve for x
    x = 2,183,756,889.57/68,116.32
  6. Step 6: Final answer
    x = 32,059.23

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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.