Home / 75,921.46-104,747.25-42,380.98

Finding the Fourth Proportional to 75,921.46, 104,747.25 and 42,380.98

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Solution

The fourth proportional to 75,921.46, 104,747.25 and 42,380.98 is: 58,472.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,921.46 : 104,747.25 = 42,380.98 : x
  2. Step 2: Convert to fraction form
    75,921.46/104,747.25 = 42,380.98/x
  3. Step 3: Cross multiply
    75,921.46x = 104,747.25 × 42,380.98
  4. Step 4: Simplify right side
    75,921.46x = 4,439,291,107.31
  5. Step 5: Solve for x
    x = 4,439,291,107.31/75,921.46
  6. Step 6: Final answer
    x = 58,472.15

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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.