Home / 80,977.11-111,748.09-44,680.81

Finding the Fourth Proportional to 80,977.11, 111,748.09 and 44,680.81

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Solution

The fourth proportional to 80,977.11, 111,748.09 and 44,680.81 is: 61,659.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,977.11 : 111,748.09 = 44,680.81 : x
  2. Step 2: Convert to fraction form
    80,977.11/111,748.09 = 44,680.81/x
  3. Step 3: Cross multiply
    80,977.11x = 111,748.09 × 44,680.81
  4. Step 4: Simplify right side
    80,977.11x = 4,992,995,177.15
  5. Step 5: Solve for x
    x = 4,992,995,177.15/80,977.11
  6. Step 6: Final answer
    x = 61,659.34

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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.