Home / 80,557.31-111,151.19-48,725.52

Finding the Fourth Proportional to 80,557.31, 111,151.19 and 48,725.52

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Solution

The fourth proportional to 80,557.31, 111,151.19 and 48,725.52 is: 67,230.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,557.31 : 111,151.19 = 48,725.52 : x
  2. Step 2: Convert to fraction form
    80,557.31/111,151.19 = 48,725.52/x
  3. Step 3: Cross multiply
    80,557.31x = 111,151.19 × 48,725.52
  4. Step 4: Simplify right side
    80,557.31x = 5,415,899,687.43
  5. Step 5: Solve for x
    x = 5,415,899,687.43/80,557.31
  6. Step 6: Final answer
    x = 67,230.40

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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.