Home / 70,177.20-96,833.80-39,963.76

Finding the Fourth Proportional to 70,177.20, 96,833.80 and 39,963.76

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Solution

The fourth proportional to 70,177.20, 96,833.80 and 39,963.76 is: 55,143.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,177.20 : 96,833.80 = 39,963.76 : x
  2. Step 2: Convert to fraction form
    70,177.20/96,833.80 = 39,963.76/x
  3. Step 3: Cross multiply
    70,177.20x = 96,833.80 × 39,963.76
  4. Step 4: Simplify right side
    70,177.20x = 3,869,842,743.09
  5. Step 5: Solve for x
    x = 3,869,842,743.09/70,177.20
  6. Step 6: Final answer
    x = 55,143.87

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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.