Home / 85,464.91-128,196.87-34,863.76

Finding the Fourth Proportional to 85,464.91, 128,196.87 and 34,863.76

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Solution

The fourth proportional to 85,464.91, 128,196.87 and 34,863.76 is: 52,295.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,464.91 : 128,196.87 = 34,863.76 : x
  2. Step 2: Convert to fraction form
    85,464.91/128,196.87 = 34,863.76/x
  3. Step 3: Cross multiply
    85,464.91x = 128,196.87 × 34,863.76
  4. Step 4: Simplify right side
    85,464.91x = 4,469,424,908.43
  5. Step 5: Solve for x
    x = 4,469,424,908.43/85,464.91
  6. Step 6: Final answer
    x = 52,295.44

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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.