Home / 85,664.44-128,481.18-23,320.36

Finding the Fourth Proportional to 85,664.44, 128,481.18 and 23,320.36

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Solution

The fourth proportional to 85,664.44, 128,481.18 and 23,320.36 is: 34,976.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,664.44 : 128,481.18 = 23,320.36 : x
  2. Step 2: Convert to fraction form
    85,664.44/128,481.18 = 23,320.36/x
  3. Step 3: Cross multiply
    85,664.44x = 128,481.18 × 23,320.36
  4. Step 4: Simplify right side
    85,664.44x = 2,996,227,370.82
  5. Step 5: Solve for x
    x = 2,996,227,370.82/85,664.44
  6. Step 6: Final answer
    x = 34,976.33

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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.