Home / 57,120.62-78,856.29-35,616.86

Finding the Fourth Proportional to 57,120.62, 78,856.29 and 35,616.86

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Solution

The fourth proportional to 57,120.62, 78,856.29 and 35,616.86 is: 49,169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,120.62 : 78,856.29 = 35,616.86 : x
  2. Step 2: Convert to fraction form
    57,120.62/78,856.29 = 35,616.86/x
  3. Step 3: Cross multiply
    57,120.62x = 78,856.29 × 35,616.86
  4. Step 4: Simplify right side
    57,120.62x = 2,808,613,441.05
  5. Step 5: Solve for x
    x = 2,808,613,441.05/57,120.62
  6. Step 6: Final answer
    x = 49,169.87

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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.