Home / 75,640.38-104,376.51-41,648.46

Finding the Fourth Proportional to 75,640.38, 104,376.51 and 41,648.46

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Solution

The fourth proportional to 75,640.38, 104,376.51 and 41,648.46 is: 57,470.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,640.38 : 104,376.51 = 41,648.46 : x
  2. Step 2: Convert to fraction form
    75,640.38/104,376.51 = 41,648.46/x
  3. Step 3: Cross multiply
    75,640.38x = 104,376.51 × 41,648.46
  4. Step 4: Simplify right side
    75,640.38x = 4,347,120,901.67
  5. Step 5: Solve for x
    x = 4,347,120,901.67/75,640.38
  6. Step 6: Final answer
    x = 57,470.90

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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.