Home / 86,277.26-129,428.94-27,107.36

Finding the Fourth Proportional to 86,277.26, 129,428.94 and 27,107.36

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Solution

The fourth proportional to 86,277.26, 129,428.94 and 27,107.36 is: 40,665.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,277.26 : 129,428.94 = 27,107.36 : x
  2. Step 2: Convert to fraction form
    86,277.26/129,428.94 = 27,107.36/x
  3. Step 3: Cross multiply
    86,277.26x = 129,428.94 × 27,107.36
  4. Step 4: Simplify right side
    86,277.26x = 3,508,476,223.85
  5. Step 5: Solve for x
    x = 3,508,476,223.85/86,277.26
  6. Step 6: Final answer
    x = 40,665.14

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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.