Home / 82,231.12-123,349.02-26,071.48

Finding the Fourth Proportional to 82,231.12, 123,349.02 and 26,071.48

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Solution

The fourth proportional to 82,231.12, 123,349.02 and 26,071.48 is: 39,107.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,231.12 : 123,349.02 = 26,071.48 : x
  2. Step 2: Convert to fraction form
    82,231.12/123,349.02 = 26,071.48/x
  3. Step 3: Cross multiply
    82,231.12x = 123,349.02 × 26,071.48
  4. Step 4: Simplify right side
    82,231.12x = 3,215,891,507.95
  5. Step 5: Solve for x
    x = 3,215,891,507.95/82,231.12
  6. Step 6: Final answer
    x = 39,107.96

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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.