Home / 54,811.76-75,640.10-29,661.28

Finding the Fourth Proportional to 54,811.76, 75,640.10 and 29,661.28

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Solution

The fourth proportional to 54,811.76, 75,640.10 and 29,661.28 is: 40,932.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,811.76 : 75,640.10 = 29,661.28 : x
  2. Step 2: Convert to fraction form
    54,811.76/75,640.10 = 29,661.28/x
  3. Step 3: Cross multiply
    54,811.76x = 75,640.10 × 29,661.28
  4. Step 4: Simplify right side
    54,811.76x = 2,243,582,185.33
  5. Step 5: Solve for x
    x = 2,243,582,185.33/54,811.76
  6. Step 6: Final answer
    x = 40,932.50

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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.