Home / 73,003.35-100,735.48-42,781.75

Finding the Fourth Proportional to 73,003.35, 100,735.48 and 42,781.75

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Solution

The fourth proportional to 73,003.35, 100,735.48 and 42,781.75 is: 59,033.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,003.35 : 100,735.48 = 42,781.75 : x
  2. Step 2: Convert to fraction form
    73,003.35/100,735.48 = 42,781.75/x
  3. Step 3: Cross multiply
    73,003.35x = 100,735.48 × 42,781.75
  4. Step 4: Simplify right side
    73,003.35x = 4,309,640,121.49
  5. Step 5: Solve for x
    x = 4,309,640,121.49/73,003.35
  6. Step 6: Final answer
    x = 59,033.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.