Home / 82,329.47-123,494.51-19,999.97

Finding the Fourth Proportional to 82,329.47, 123,494.51 and 19,999.97

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Solution

The fourth proportional to 82,329.47, 123,494.51 and 19,999.97 is: 30,000.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,329.47 : 123,494.51 = 19,999.97 : x
  2. Step 2: Convert to fraction form
    82,329.47/123,494.51 = 19,999.97/x
  3. Step 3: Cross multiply
    82,329.47x = 123,494.51 × 19,999.97
  4. Step 4: Simplify right side
    82,329.47x = 2,469,886,278.30
  5. Step 5: Solve for x
    x = 2,469,886,278.30/82,329.47
  6. Step 6: Final answer
    x = 30,000.03

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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.