Home / 71,769.58-107,650.01-31,776.91

Finding the Fourth Proportional to 71,769.58, 107,650.01 and 31,776.91

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Solution

The fourth proportional to 71,769.58, 107,650.01 and 31,776.91 is: 47,663.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,769.58 : 107,650.01 = 31,776.91 : x
  2. Step 2: Convert to fraction form
    71,769.58/107,650.01 = 31,776.91/x
  3. Step 3: Cross multiply
    71,769.58x = 107,650.01 × 31,776.91
  4. Step 4: Simplify right side
    71,769.58x = 3,420,784,489.59
  5. Step 5: Solve for x
    x = 3,420,784,489.59/71,769.58
  6. Step 6: Final answer
    x = 47,663.43

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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.