Home / 86,983.44-120,039.96-49,256.88

Finding the Fourth Proportional to 86,983.44, 120,039.96 and 49,256.88

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Solution

The fourth proportional to 86,983.44, 120,039.96 and 49,256.88 is: 67,976.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,983.44 : 120,039.96 = 49,256.88 : x
  2. Step 2: Convert to fraction form
    86,983.44/120,039.96 = 49,256.88/x
  3. Step 3: Cross multiply
    86,983.44x = 120,039.96 × 49,256.88
  4. Step 4: Simplify right side
    86,983.44x = 5,912,793,904.92
  5. Step 5: Solve for x
    x = 5,912,793,904.92/86,983.44
  6. Step 6: Final answer
    x = 67,976.09

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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.