Home / 82,276.59-123,414.91-19,947.09

Finding the Fourth Proportional to 82,276.59, 123,414.91 and 19,947.09

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Solution

The fourth proportional to 82,276.59, 123,414.91 and 19,947.09 is: 29,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,276.59 : 123,414.91 = 19,947.09 : x
  2. Step 2: Convert to fraction form
    82,276.59/123,414.91 = 19,947.09/x
  3. Step 3: Cross multiply
    82,276.59x = 123,414.91 × 19,947.09
  4. Step 4: Simplify right side
    82,276.59x = 2,461,768,730.05
  5. Step 5: Solve for x
    x = 2,461,768,730.05/82,276.59
  6. Step 6: Final answer
    x = 29,920.64

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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.