Home / 82,342.32-123,512.52-20,012.88

Finding the Fourth Proportional to 82,342.32, 123,512.52 and 20,012.88

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Solution

The fourth proportional to 82,342.32, 123,512.52 and 20,012.88 is: 30,019.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,342.32 : 123,512.52 = 20,012.88 : x
  2. Step 2: Convert to fraction form
    82,342.32/123,512.52 = 20,012.88/x
  3. Step 3: Cross multiply
    82,342.32x = 123,512.52 × 20,012.88
  4. Step 4: Simplify right side
    82,342.32x = 2,471,841,241.26
  5. Step 5: Solve for x
    x = 2,471,841,241.26/82,342.32
  6. Step 6: Final answer
    x = 30,019.09

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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.