Home / 53,979.43-74,467.53-31,305.29

Finding the Fourth Proportional to 53,979.43, 74,467.53 and 31,305.29

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Solution

The fourth proportional to 53,979.43, 74,467.53 and 31,305.29 is: 43,187.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,979.43 : 74,467.53 = 31,305.29 : x
  2. Step 2: Convert to fraction form
    53,979.43/74,467.53 = 31,305.29/x
  3. Step 3: Cross multiply
    53,979.43x = 74,467.53 × 31,305.29
  4. Step 4: Simplify right side
    53,979.43x = 2,331,227,732.14
  5. Step 5: Solve for x
    x = 2,331,227,732.14/53,979.43
  6. Step 6: Final answer
    x = 43,187.33

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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.