Home / 82,511.64-123,785.42-46,989.76

Finding the Fourth Proportional to 82,511.64, 123,785.42 and 46,989.76

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Solution

The fourth proportional to 82,511.64, 123,785.42 and 46,989.76 is: 70,494.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,511.64 : 123,785.42 = 46,989.76 : x
  2. Step 2: Convert to fraction form
    82,511.64/123,785.42 = 46,989.76/x
  3. Step 3: Cross multiply
    82,511.64x = 123,785.42 × 46,989.76
  4. Step 4: Simplify right side
    82,511.64x = 5,816,647,177.30
  5. Step 5: Solve for x
    x = 5,816,647,177.30/82,511.64
  6. Step 6: Final answer
    x = 70,494.87

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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.