Home / 275,082.94-412,621.07-75,403.16

Finding the Fourth Proportional to 275,082.94, 412,621.07 and 75,403.16

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Solution

The fourth proportional to 275,082.94, 412,621.07 and 75,403.16 is: 113,103.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,082.94 : 412,621.07 = 75,403.16 : x
  2. Step 2: Convert to fraction form
    275,082.94/412,621.07 = 75,403.16/x
  3. Step 3: Cross multiply
    275,082.94x = 412,621.07 × 75,403.16
  4. Step 4: Simplify right side
    275,082.94x = 31,112,932,560.58
  5. Step 5: Solve for x
    x = 31,112,932,560.58/275,082.94
  6. Step 6: Final answer
    x = 113,103.82

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.