Home / 73,629.06-100,996.32-72,996.45

Finding the Fourth Proportional to 73,629.06, 100,996.32 and 72,996.45

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Solution

The fourth proportional to 73,629.06, 100,996.32 and 72,996.45 is: 100,128.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,629.06 : 100,996.32 = 72,996.45 : x
  2. Step 2: Convert to fraction form
    73,629.06/100,996.32 = 72,996.45/x
  3. Step 3: Cross multiply
    73,629.06x = 100,996.32 × 72,996.45
  4. Step 4: Simplify right side
    73,629.06x = 7,372,372,823.06
  5. Step 5: Solve for x
    x = 7,372,372,823.06/73,629.06
  6. Step 6: Final answer
    x = 100,128.57

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.