Home / 54,654.09-75,428.03-31,991.71

Finding the Fourth Proportional to 54,654.09, 75,428.03 and 31,991.71

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Solution

The fourth proportional to 54,654.09, 75,428.03 and 31,991.71 is: 44,151.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,654.09 : 75,428.03 = 31,991.71 : x
  2. Step 2: Convert to fraction form
    54,654.09/75,428.03 = 31,991.71/x
  3. Step 3: Cross multiply
    54,654.09x = 75,428.03 × 31,991.71
  4. Step 4: Simplify right side
    54,654.09x = 2,413,071,661.63
  5. Step 5: Solve for x
    x = 2,413,071,661.63/54,654.09
  6. Step 6: Final answer
    x = 44,151.71

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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.