Home / 51,619.40-71,231.60-28,954.18

Finding the Fourth Proportional to 51,619.40, 71,231.60 and 28,954.18

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Solution

The fourth proportional to 51,619.40, 71,231.60 and 28,954.18 is: 39,954.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,619.40 : 71,231.60 = 28,954.18 : x
  2. Step 2: Convert to fraction form
    51,619.40/71,231.60 = 28,954.18/x
  3. Step 3: Cross multiply
    51,619.40x = 71,231.60 × 28,954.18
  4. Step 4: Simplify right side
    51,619.40x = 2,062,452,568.09
  5. Step 5: Solve for x
    x = 2,062,452,568.09/51,619.40
  6. Step 6: Final answer
    x = 39,954.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.