Home / 85,176.28-127,632.99-53,945.92

Finding the Fourth Proportional to 85,176.28, 127,632.99 and 53,945.92

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Solution

The fourth proportional to 85,176.28, 127,632.99 and 53,945.92 is: 80,835.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,176.28 : 127,632.99 = 53,945.92 : x
  2. Step 2: Convert to fraction form
    85,176.28/127,632.99 = 53,945.92/x
  3. Step 3: Cross multiply
    85,176.28x = 127,632.99 × 53,945.92
  4. Step 4: Simplify right side
    85,176.28x = 6,885,279,067.90
  5. Step 5: Solve for x
    x = 6,885,279,067.90/85,176.28
  6. Step 6: Final answer
    x = 80,835.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.