Home / 86,112.28-129,098.71-26,917.48

Finding the Fourth Proportional to 86,112.28, 129,098.71 and 26,917.48

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Solution

The fourth proportional to 86,112.28, 129,098.71 and 26,917.48 is: 40,354.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,112.28 : 129,098.71 = 26,917.48 : x
  2. Step 2: Convert to fraction form
    86,112.28/129,098.71 = 26,917.48/x
  3. Step 3: Cross multiply
    86,112.28x = 129,098.71 × 26,917.48
  4. Step 4: Simplify right side
    86,112.28x = 3,475,011,944.45
  5. Step 5: Solve for x
    x = 3,475,011,944.45/86,112.28
  6. Step 6: Final answer
    x = 40,354.43

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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.