Home / 71,902.08-107,872.56-21,983.94

Finding the Fourth Proportional to 71,902.08, 107,872.56 and 21,983.94

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Solution

The fourth proportional to 71,902.08, 107,872.56 and 21,983.94 is: 32,981.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,902.08 : 107,872.56 = 21,983.94 : x
  2. Step 2: Convert to fraction form
    71,902.08/107,872.56 = 21,983.94/x
  3. Step 3: Cross multiply
    71,902.08x = 107,872.56 × 21,983.94
  4. Step 4: Simplify right side
    71,902.08x = 2,371,463,886.69
  5. Step 5: Solve for x
    x = 2,371,463,886.69/71,902.08
  6. Step 6: Final answer
    x = 32,981.85

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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.