Home / 80,896.25-111,640.64-45,086.52

Finding the Fourth Proportional to 80,896.25, 111,640.64 and 45,086.52

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Solution

The fourth proportional to 80,896.25, 111,640.64 and 45,086.52 is: 62,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,896.25 : 111,640.64 = 45,086.52 : x
  2. Step 2: Convert to fraction form
    80,896.25/111,640.64 = 45,086.52/x
  3. Step 3: Cross multiply
    80,896.25x = 111,640.64 × 45,086.52
  4. Step 4: Simplify right side
    80,896.25x = 5,033,487,948.17
  5. Step 5: Solve for x
    x = 5,033,487,948.17/80,896.25
  6. Step 6: Final answer
    x = 62,221.52

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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.