Home / 54,091.88-81,128.46-14,639.78

Finding the Fourth Proportional to 54,091.88, 81,128.46 and 14,639.78

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Solution

The fourth proportional to 54,091.88, 81,128.46 and 14,639.78 is: 21,957.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,091.88 : 81,128.46 = 14,639.78 : x
  2. Step 2: Convert to fraction form
    54,091.88/81,128.46 = 14,639.78/x
  3. Step 3: Cross multiply
    54,091.88x = 81,128.46 × 14,639.78
  4. Step 4: Simplify right side
    54,091.88x = 1,187,702,806.14
  5. Step 5: Solve for x
    x = 1,187,702,806.14/54,091.88
  6. Step 6: Final answer
    x = 21,957.14

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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.