Home / 115,076.13-172,616.35-31,972.29

Finding the Fourth Proportional to 115,076.13, 172,616.35 and 31,972.29

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Solution

The fourth proportional to 115,076.13, 172,616.35 and 31,972.29 is: 47,959.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,076.13 : 172,616.35 = 31,972.29 : x
  2. Step 2: Convert to fraction form
    115,076.13/172,616.35 = 31,972.29/x
  3. Step 3: Cross multiply
    115,076.13x = 172,616.35 × 31,972.29
  4. Step 4: Simplify right side
    115,076.13x = 5,518,940,000.94
  5. Step 5: Solve for x
    x = 5,518,940,000.94/115,076.13
  6. Step 6: Final answer
    x = 47,959.03

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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.