Home / 68,260.05-102,390.06-21,516.57

Finding the Fourth Proportional to 68,260.05, 102,390.06 and 21,516.57

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Solution

The fourth proportional to 68,260.05, 102,390.06 and 21,516.57 is: 32,274.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,260.05 : 102,390.06 = 21,516.57 : x
  2. Step 2: Convert to fraction form
    68,260.05/102,390.06 = 21,516.57/x
  3. Step 3: Cross multiply
    68,260.05x = 102,390.06 × 21,516.57
  4. Step 4: Simplify right side
    68,260.05x = 2,203,082,893.29
  5. Step 5: Solve for x
    x = 2,203,082,893.29/68,260.05
  6. Step 6: Final answer
    x = 32,274.85

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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.