Home / 83,960.35-115,778.19-64,843.23

Finding the Fourth Proportional to 83,960.35, 115,778.19 and 64,843.23

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Solution

The fourth proportional to 83,960.35, 115,778.19 and 64,843.23 is: 89,416.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,960.35 : 115,778.19 = 64,843.23 : x
  2. Step 2: Convert to fraction form
    83,960.35/115,778.19 = 64,843.23/x
  3. Step 3: Cross multiply
    83,960.35x = 115,778.19 × 64,843.23
  4. Step 4: Simplify right side
    83,960.35x = 7,507,432,480.48
  5. Step 5: Solve for x
    x = 7,507,432,480.48/83,960.35
  6. Step 6: Final answer
    x = 89,416.41

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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.