Home / 80,972.82-111,670.10-50,761.84

Finding the Fourth Proportional to 80,972.82, 111,670.10 and 50,761.84

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Solution

The fourth proportional to 80,972.82, 111,670.10 and 50,761.84 is: 70,005.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,972.82 : 111,670.10 = 50,761.84 : x
  2. Step 2: Convert to fraction form
    80,972.82/111,670.10 = 50,761.84/x
  3. Step 3: Cross multiply
    80,972.82x = 111,670.10 × 50,761.84
  4. Step 4: Simplify right side
    80,972.82x = 5,668,579,748.98
  5. Step 5: Solve for x
    x = 5,668,579,748.98/80,972.82
  6. Step 6: Final answer
    x = 70,005.96

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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.