Home / 87,629.73-120,929.09-47,343.48

Finding the Fourth Proportional to 87,629.73, 120,929.09 and 47,343.48

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Solution

The fourth proportional to 87,629.73, 120,929.09 and 47,343.48 is: 65,334.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,629.73 : 120,929.09 = 47,343.48 : x
  2. Step 2: Convert to fraction form
    87,629.73/120,929.09 = 47,343.48/x
  3. Step 3: Cross multiply
    87,629.73x = 120,929.09 × 47,343.48
  4. Step 4: Simplify right side
    87,629.73x = 5,725,203,953.83
  5. Step 5: Solve for x
    x = 5,725,203,953.83/87,629.73
  6. Step 6: Final answer
    x = 65,334.04

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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.