Home / 73,039.48-109,270.98-55,321.20

Finding the Fourth Proportional to 73,039.48, 109,270.98 and 55,321.20

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Solution

The fourth proportional to 73,039.48, 109,270.98 and 55,321.20 is: 82,763.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,039.48 : 109,270.98 = 55,321.20 : x
  2. Step 2: Convert to fraction form
    73,039.48/109,270.98 = 55,321.20/x
  3. Step 3: Cross multiply
    73,039.48x = 109,270.98 × 55,321.20
  4. Step 4: Simplify right side
    73,039.48x = 6,045,001,738.78
  5. Step 5: Solve for x
    x = 6,045,001,738.78/73,039.48
  6. Step 6: Final answer
    x = 82,763.48

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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.