Home / 85,183.20-127,677.90-51,829.74

Finding the Fourth Proportional to 85,183.20, 127,677.90 and 51,829.74

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Solution

The fourth proportional to 85,183.20, 127,677.90 and 51,829.74 is: 77,685.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,183.20 : 127,677.90 = 51,829.74 : x
  2. Step 2: Convert to fraction form
    85,183.20/127,677.90 = 51,829.74/x
  3. Step 3: Cross multiply
    85,183.20x = 127,677.90 × 51,829.74
  4. Step 4: Simplify right side
    85,183.20x = 6,617,512,360.75
  5. Step 5: Solve for x
    x = 6,617,512,360.75/85,183.20
  6. Step 6: Final answer
    x = 77,685.65

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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.