Home / 54,257.76-81,387.72-35,656.38

Finding the Fourth Proportional to 54,257.76, 81,387.72 and 35,656.38

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Solution

The fourth proportional to 54,257.76, 81,387.72 and 35,656.38 is: 53,485.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,257.76 : 81,387.72 = 35,656.38 : x
  2. Step 2: Convert to fraction form
    54,257.76/81,387.72 = 35,656.38/x
  3. Step 3: Cross multiply
    54,257.76x = 81,387.72 × 35,656.38
  4. Step 4: Simplify right side
    54,257.76x = 2,901,991,471.65
  5. Step 5: Solve for x
    x = 2,901,991,471.65/54,257.76
  6. Step 6: Final answer
    x = 53,485.28

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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.