Home / 54,440.74-75,134.24-31,785.30

Finding the Fourth Proportional to 54,440.74, 75,134.24 and 31,785.30

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Solution

The fourth proportional to 54,440.74, 75,134.24 and 31,785.30 is: 43,867.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,440.74 : 75,134.24 = 31,785.30 : x
  2. Step 2: Convert to fraction form
    54,440.74/75,134.24 = 31,785.30/x
  3. Step 3: Cross multiply
    54,440.74x = 75,134.24 × 31,785.30
  4. Step 4: Simplify right side
    54,440.74x = 2,388,164,358.67
  5. Step 5: Solve for x
    x = 2,388,164,358.67/54,440.74
  6. Step 6: Final answer
    x = 43,867.23

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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.