Home / 48,067.12-71,952.84-31,391.20

Finding the Fourth Proportional to 48,067.12, 71,952.84 and 31,391.20

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Solution

The fourth proportional to 48,067.12, 71,952.84 and 31,391.20 is: 46,990.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,067.12 : 71,952.84 = 31,391.20 : x
  2. Step 2: Convert to fraction form
    48,067.12/71,952.84 = 31,391.20/x
  3. Step 3: Cross multiply
    48,067.12x = 71,952.84 × 31,391.20
  4. Step 4: Simplify right side
    48,067.12x = 2,258,685,991.01
  5. Step 5: Solve for x
    x = 2,258,685,991.01/48,067.12
  6. Step 6: Final answer
    x = 46,990.25

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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.