Home / 80,729.84-111,407.72-44,921.36

Finding the Fourth Proportional to 80,729.84, 111,407.72 and 44,921.36

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Solution

The fourth proportional to 80,729.84, 111,407.72 and 44,921.36 is: 61,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,729.84 : 111,407.72 = 44,921.36 : x
  2. Step 2: Convert to fraction form
    80,729.84/111,407.72 = 44,921.36/x
  3. Step 3: Cross multiply
    80,729.84x = 111,407.72 × 44,921.36
  4. Step 4: Simplify right side
    80,729.84x = 5,004,586,296.90
  5. Step 5: Solve for x
    x = 5,004,586,296.90/80,729.84
  6. Step 6: Final answer
    x = 61,991.78

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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.