Home / 83,674.32-115,486.92-51,857.36

Finding the Fourth Proportional to 83,674.32, 115,486.92 and 51,857.36

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Solution

The fourth proportional to 83,674.32, 115,486.92 and 51,857.36 is: 71,573.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,674.32 : 115,486.92 = 51,857.36 : x
  2. Step 2: Convert to fraction form
    83,674.32/115,486.92 = 51,857.36/x
  3. Step 3: Cross multiply
    83,674.32x = 115,486.92 × 51,857.36
  4. Step 4: Simplify right side
    83,674.32x = 5,988,846,785.73
  5. Step 5: Solve for x
    x = 5,988,846,785.73/83,674.32
  6. Step 6: Final answer
    x = 71,573.29

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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.