Home / 82,229.63-123,345.05-19,900.13

Finding the Fourth Proportional to 82,229.63, 123,345.05 and 19,900.13

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Solution

The fourth proportional to 82,229.63, 123,345.05 and 19,900.13 is: 29,850.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,229.63 : 123,345.05 = 19,900.13 : x
  2. Step 2: Convert to fraction form
    82,229.63/123,345.05 = 19,900.13/x
  3. Step 3: Cross multiply
    82,229.63x = 123,345.05 × 19,900.13
  4. Step 4: Simplify right side
    82,229.63x = 2,454,581,813.63
  5. Step 5: Solve for x
    x = 2,454,581,813.63/82,229.63
  6. Step 6: Final answer
    x = 29,850.33

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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.