Home / 80,832.66-111,546.03-45,021.88

Finding the Fourth Proportional to 80,832.66, 111,546.03 and 45,021.88

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Solution

The fourth proportional to 80,832.66, 111,546.03 and 45,021.88 is: 62,128.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,832.66 : 111,546.03 = 45,021.88 : x
  2. Step 2: Convert to fraction form
    80,832.66/111,546.03 = 45,021.88/x
  3. Step 3: Cross multiply
    80,832.66x = 111,546.03 × 45,021.88
  4. Step 4: Simplify right side
    80,832.66x = 5,022,011,977.14
  5. Step 5: Solve for x
    x = 5,022,011,977.14/80,832.66
  6. Step 6: Final answer
    x = 62,128.50

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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.