Home / 89,078.22-133,628.31-29,105.28

Finding the Fourth Proportional to 89,078.22, 133,628.31 and 29,105.28

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Solution

The fourth proportional to 89,078.22, 133,628.31 and 29,105.28 is: 43,661.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,078.22 : 133,628.31 = 29,105.28 : x
  2. Step 2: Convert to fraction form
    89,078.22/133,628.31 = 29,105.28/x
  3. Step 3: Cross multiply
    89,078.22x = 133,628.31 × 29,105.28
  4. Step 4: Simplify right side
    89,078.22x = 3,889,289,378.48
  5. Step 5: Solve for x
    x = 3,889,289,378.48/89,078.22
  6. Step 6: Final answer
    x = 43,661.51

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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.