Home / 83,291.28-124,736.70-47,644.56

Finding the Fourth Proportional to 83,291.28, 124,736.70 and 47,644.56

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Solution

The fourth proportional to 83,291.28, 124,736.70 and 47,644.56 is: 71,352.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,291.28 : 124,736.70 = 47,644.56 : x
  2. Step 2: Convert to fraction form
    83,291.28/124,736.70 = 47,644.56/x
  3. Step 3: Cross multiply
    83,291.28x = 124,736.70 × 47,644.56
  4. Step 4: Simplify right side
    83,291.28x = 5,943,025,187.35
  5. Step 5: Solve for x
    x = 5,943,025,187.35/83,291.28
  6. Step 6: Final answer
    x = 71,352.31

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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.