Home / 83,918.16-125,873.16-31,323.60

Finding the Fourth Proportional to 83,918.16, 125,873.16 and 31,323.60

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Solution

The fourth proportional to 83,918.16, 125,873.16 and 31,323.60 is: 46,983.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,918.16 : 125,873.16 = 31,323.60 : x
  2. Step 2: Convert to fraction form
    83,918.16/125,873.16 = 31,323.60/x
  3. Step 3: Cross multiply
    83,918.16x = 125,873.16 × 31,323.60
  4. Step 4: Simplify right side
    83,918.16x = 3,942,800,514.58
  5. Step 5: Solve for x
    x = 3,942,800,514.58/83,918.16
  6. Step 6: Final answer
    x = 46,983.88

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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.