Home / 115,042.36-172,606.20-51,843.28

Finding the Fourth Proportional to 115,042.36, 172,606.20 and 51,843.28

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Solution

The fourth proportional to 115,042.36, 172,606.20 and 51,843.28 is: 77,784.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,042.36 : 172,606.20 = 51,843.28 : x
  2. Step 2: Convert to fraction form
    115,042.36/172,606.20 = 51,843.28/x
  3. Step 3: Cross multiply
    115,042.36x = 172,606.20 × 51,843.28
  4. Step 4: Simplify right side
    115,042.36x = 8,948,471,556.34
  5. Step 5: Solve for x
    x = 8,948,471,556.34/115,042.36
  6. Step 6: Final answer
    x = 77,784.14

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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.