Home / 54,725.19-82,087.81-13,172.19

Finding the Fourth Proportional to 54,725.19, 82,087.81 and 13,172.19

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Solution

The fourth proportional to 54,725.19, 82,087.81 and 13,172.19 is: 19,758.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,725.19 : 82,087.81 = 13,172.19 : x
  2. Step 2: Convert to fraction form
    54,725.19/82,087.81 = 13,172.19/x
  3. Step 3: Cross multiply
    54,725.19x = 82,087.81 × 13,172.19
  4. Step 4: Simplify right side
    54,725.19x = 1,081,276,197.07
  5. Step 5: Solve for x
    x = 1,081,276,197.07/54,725.19
  6. Step 6: Final answer
    x = 19,758.29

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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.