Home / 54,209.12-74,799.60-31,857.44

Finding the Fourth Proportional to 54,209.12, 74,799.60 and 31,857.44

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Solution

The fourth proportional to 54,209.12, 74,799.60 and 31,857.44 is: 43,957.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,209.12 : 74,799.60 = 31,857.44 : x
  2. Step 2: Convert to fraction form
    54,209.12/74,799.60 = 31,857.44/x
  3. Step 3: Cross multiply
    54,209.12x = 74,799.60 × 31,857.44
  4. Step 4: Simplify right side
    54,209.12x = 2,382,923,769.02
  5. Step 5: Solve for x
    x = 2,382,923,769.02/54,209.12
  6. Step 6: Final answer
    x = 43,957.99

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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.