Home / 83,143.92-114,656.64-51,306.06

Finding the Fourth Proportional to 83,143.92, 114,656.64 and 51,306.06

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Solution

The fourth proportional to 83,143.92, 114,656.64 and 51,306.06 is: 70,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,143.92 : 114,656.64 = 51,306.06 : x
  2. Step 2: Convert to fraction form
    83,143.92/114,656.64 = 51,306.06/x
  3. Step 3: Cross multiply
    83,143.92x = 114,656.64 × 51,306.06
  4. Step 4: Simplify right side
    83,143.92x = 5,882,580,451.24
  5. Step 5: Solve for x
    x = 5,882,580,451.24/83,143.92
  6. Step 6: Final answer
    x = 70,751.78

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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.