Home / 82,274.92-123,412.37-19,945.42

Finding the Fourth Proportional to 82,274.92, 123,412.37 and 19,945.42

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Solution

The fourth proportional to 82,274.92, 123,412.37 and 19,945.42 is: 29,918.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,274.92 : 123,412.37 = 19,945.42 : x
  2. Step 2: Convert to fraction form
    82,274.92/123,412.37 = 19,945.42/x
  3. Step 3: Cross multiply
    82,274.92x = 123,412.37 × 19,945.42
  4. Step 4: Simplify right side
    82,274.92x = 2,461,511,552.85
  5. Step 5: Solve for x
    x = 2,461,511,552.85/82,274.92
  6. Step 6: Final answer
    x = 29,918.13

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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.