Home / 54,107.09-74,665.63-31,445.01

Finding the Fourth Proportional to 54,107.09, 74,665.63 and 31,445.01

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Solution

The fourth proportional to 54,107.09, 74,665.63 and 31,445.01 is: 43,392.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,107.09 : 74,665.63 = 31,445.01 : x
  2. Step 2: Convert to fraction form
    54,107.09/74,665.63 = 31,445.01/x
  3. Step 3: Cross multiply
    54,107.09x = 74,665.63 × 31,445.01
  4. Step 4: Simplify right side
    54,107.09x = 2,347,861,521.31
  5. Step 5: Solve for x
    x = 2,347,861,521.31/54,107.09
  6. Step 6: Final answer
    x = 43,392.86

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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.