Home / 80,996.08-111,701.92-50,784.70

Finding the Fourth Proportional to 80,996.08, 111,701.92 and 50,784.70

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Solution

The fourth proportional to 80,996.08, 111,701.92 and 50,784.70 is: 70,037.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,996.08 : 111,701.92 = 50,784.70 : x
  2. Step 2: Convert to fraction form
    80,996.08/111,701.92 = 50,784.70/x
  3. Step 3: Cross multiply
    80,996.08x = 111,701.92 × 50,784.70
  4. Step 4: Simplify right side
    80,996.08x = 5,672,748,496.62
  5. Step 5: Solve for x
    x = 5,672,748,496.62/80,996.08
  6. Step 6: Final answer
    x = 70,037.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.