Home / 82,466.13-123,736.07-47,405.79

Finding the Fourth Proportional to 82,466.13, 123,736.07 and 47,405.79

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Solution

The fourth proportional to 82,466.13, 123,736.07 and 47,405.79 is: 71,129.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,466.13 : 123,736.07 = 47,405.79 : x
  2. Step 2: Convert to fraction form
    82,466.13/123,736.07 = 47,405.79/x
  3. Step 3: Cross multiply
    82,466.13x = 123,736.07 × 47,405.79
  4. Step 4: Simplify right side
    82,466.13x = 5,865,806,268.36
  5. Step 5: Solve for x
    x = 5,865,806,268.36/82,466.13
  6. Step 6: Final answer
    x = 71,129.88

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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.