Home / 80,764.92-111,441.72-74,232.36

Finding the Fourth Proportional to 80,764.92, 111,441.72 and 74,232.36

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Solution

The fourth proportional to 80,764.92, 111,441.72 and 74,232.36 is: 102,427.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,764.92 : 111,441.72 = 74,232.36 : x
  2. Step 2: Convert to fraction form
    80,764.92/111,441.72 = 74,232.36/x
  3. Step 3: Cross multiply
    80,764.92x = 111,441.72 × 74,232.36
  4. Step 4: Simplify right side
    80,764.92x = 8,272,581,878.06
  5. Step 5: Solve for x
    x = 8,272,581,878.06/80,764.92
  6. Step 6: Final answer
    x = 102,427.91

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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.