Home / 55,785.71-76,982.13-31,914.59

Finding the Fourth Proportional to 55,785.71, 76,982.13 and 31,914.59

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Solution

The fourth proportional to 55,785.71, 76,982.13 and 31,914.59 is: 44,040.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,785.71 : 76,982.13 = 31,914.59 : x
  2. Step 2: Convert to fraction form
    55,785.71/76,982.13 = 31,914.59/x
  3. Step 3: Cross multiply
    55,785.71x = 76,982.13 × 31,914.59
  4. Step 4: Simplify right side
    55,785.71x = 2,456,853,116.28
  5. Step 5: Solve for x
    x = 2,456,853,116.28/55,785.71
  6. Step 6: Final answer
    x = 44,040.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.