Home / 83,686.14-115,508.79-51,836.94

Finding the Fourth Proportional to 83,686.14, 115,508.79 and 51,836.94

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Solution

The fourth proportional to 83,686.14, 115,508.79 and 51,836.94 is: 71,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,686.14 : 115,508.79 = 51,836.94 : x
  2. Step 2: Convert to fraction form
    83,686.14/115,508.79 = 51,836.94/x
  3. Step 3: Cross multiply
    83,686.14x = 115,508.79 × 51,836.94
  4. Step 4: Simplify right side
    83,686.14x = 5,987,622,216.70
  5. Step 5: Solve for x
    x = 5,987,622,216.70/83,686.14
  6. Step 6: Final answer
    x = 71,548.55

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1.5x scale

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.