Home / 115,076.25-172,616.54-31,972.41

Finding the Fourth Proportional to 115,076.25, 172,616.54 and 31,972.41

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Solution

The fourth proportional to 115,076.25, 172,616.54 and 31,972.41 is: 47,959.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,076.25 : 172,616.54 = 31,972.41 : x
  2. Step 2: Convert to fraction form
    115,076.25/172,616.54 = 31,972.41/x
  3. Step 3: Cross multiply
    115,076.25x = 172,616.54 × 31,972.41
  4. Step 4: Simplify right side
    115,076.25x = 5,518,966,629.80
  5. Step 5: Solve for x
    x = 5,518,966,629.80/115,076.25
  6. Step 6: Final answer
    x = 47,959.22

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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.