Home / 115,062.54-172,589.72-40,182.39

Finding the Fourth Proportional to 115,062.54, 172,589.72 and 40,182.39

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Solution

The fourth proportional to 115,062.54, 172,589.72 and 40,182.39 is: 60,272.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,062.54 : 172,589.72 = 40,182.39 : x
  2. Step 2: Convert to fraction form
    115,062.54/172,589.72 = 40,182.39/x
  3. Step 3: Cross multiply
    115,062.54x = 172,589.72 × 40,182.39
  4. Step 4: Simplify right side
    115,062.54x = 6,935,067,238.12
  5. Step 5: Solve for x
    x = 6,935,067,238.12/115,062.54
  6. Step 6: Final answer
    x = 60,272.15

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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.