Home / 107,989.48-162,015.31-33,120.60

Finding the Fourth Proportional to 107,989.48, 162,015.31 and 33,120.60

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Solution

The fourth proportional to 107,989.48, 162,015.31 and 33,120.60 is: 49,690.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,989.48 : 162,015.31 = 33,120.60 : x
  2. Step 2: Convert to fraction form
    107,989.48/162,015.31 = 33,120.60/x
  3. Step 3: Cross multiply
    107,989.48x = 162,015.31 × 33,120.60
  4. Step 4: Simplify right side
    107,989.48x = 5,366,044,435.26
  5. Step 5: Solve for x
    x = 5,366,044,435.26/107,989.48
  6. Step 6: Final answer
    x = 49,690.44

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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.