Home / 86,118.28-129,107.71-26,923.48

Finding the Fourth Proportional to 86,118.28, 129,107.71 and 26,923.48

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Solution

The fourth proportional to 86,118.28, 129,107.71 and 26,923.48 is: 40,363.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.28 : 129,107.71 = 26,923.48 : x
  2. Step 2: Convert to fraction form
    86,118.28/129,107.71 = 26,923.48/x
  3. Step 3: Cross multiply
    86,118.28x = 129,107.71 × 26,923.48
  4. Step 4: Simplify right side
    86,118.28x = 3,476,028,848.03
  5. Step 5: Solve for x
    x = 3,476,028,848.03/86,118.28
  6. Step 6: Final answer
    x = 40,363.43

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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.