Home / 81,015.82-111,770.65-50,748.46

Finding the Fourth Proportional to 81,015.82, 111,770.65 and 50,748.46

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Solution

The fourth proportional to 81,015.82, 111,770.65 and 50,748.46 is: 70,013.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,015.82 : 111,770.65 = 50,748.46 : x
  2. Step 2: Convert to fraction form
    81,015.82/111,770.65 = 50,748.46/x
  3. Step 3: Cross multiply
    81,015.82x = 111,770.65 × 50,748.46
  4. Step 4: Simplify right side
    81,015.82x = 5,672,188,360.70
  5. Step 5: Solve for x
    x = 5,672,188,360.70/81,015.82
  6. Step 6: Final answer
    x = 70,013.34

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1.5x scale

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.