Home / 71,836.80-107,766.54-21,905.46

Finding the Fourth Proportional to 71,836.80, 107,766.54 and 21,905.46

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Solution

The fourth proportional to 71,836.80, 107,766.54 and 21,905.46 is: 32,861.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,836.80 : 107,766.54 = 21,905.46 : x
  2. Step 2: Convert to fraction form
    71,836.80/107,766.54 = 21,905.46/x
  3. Step 3: Cross multiply
    71,836.80x = 107,766.54 × 21,905.46
  4. Step 4: Simplify right side
    71,836.80x = 2,360,675,631.31
  5. Step 5: Solve for x
    x = 2,360,675,631.31/71,836.80
  6. Step 6: Final answer
    x = 32,861.65

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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.