Home / 89,321.36-133,980.66-30,198.56

Finding the Fourth Proportional to 89,321.36, 133,980.66 and 30,198.56

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Solution

The fourth proportional to 89,321.36, 133,980.66 and 30,198.56 is: 45,297.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,321.36 : 133,980.66 = 30,198.56 : x
  2. Step 2: Convert to fraction form
    89,321.36/133,980.66 = 30,198.56/x
  3. Step 3: Cross multiply
    89,321.36x = 133,980.66 × 30,198.56
  4. Step 4: Simplify right side
    89,321.36x = 4,046,022,999.85
  5. Step 5: Solve for x
    x = 4,046,022,999.85/89,321.36
  6. Step 6: Final answer
    x = 45,297.37

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1.5x scale

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.