Home / 83,734.64-125,650.92-31,181.36

Finding the Fourth Proportional to 83,734.64, 125,650.92 and 31,181.36

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Solution

The fourth proportional to 83,734.64, 125,650.92 and 31,181.36 is: 46,790.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,734.64 : 125,650.92 = 31,181.36 : x
  2. Step 2: Convert to fraction form
    83,734.64/125,650.92 = 31,181.36/x
  3. Step 3: Cross multiply
    83,734.64x = 125,650.92 × 31,181.36
  4. Step 4: Simplify right side
    83,734.64x = 3,917,966,570.85
  5. Step 5: Solve for x
    x = 3,917,966,570.85/83,734.64
  6. Step 6: Final answer
    x = 46,790.27

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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.