Home / 83,642.42-125,446.93-31,039.61

Finding the Fourth Proportional to 83,642.42, 125,446.93 and 31,039.61

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Solution

The fourth proportional to 83,642.42, 125,446.93 and 31,039.61 is: 46,553.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,642.42 : 125,446.93 = 31,039.61 : x
  2. Step 2: Convert to fraction form
    83,642.42/125,446.93 = 31,039.61/x
  3. Step 3: Cross multiply
    83,642.42x = 125,446.93 × 31,039.61
  4. Step 4: Simplify right side
    83,642.42x = 3,893,823,078.06
  5. Step 5: Solve for x
    x = 3,893,823,078.06/83,642.42
  6. Step 6: Final answer
    x = 46,553.21

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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.