Home / 54,839.68-75,680.31-30,969.94

Finding the Fourth Proportional to 54,839.68, 75,680.31 and 30,969.94

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Solution

The fourth proportional to 54,839.68, 75,680.31 and 30,969.94 is: 42,739.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,839.68 : 75,680.31 = 30,969.94 : x
  2. Step 2: Convert to fraction form
    54,839.68/75,680.31 = 30,969.94/x
  3. Step 3: Cross multiply
    54,839.68x = 75,680.31 × 30,969.94
  4. Step 4: Simplify right side
    54,839.68x = 2,343,814,505.03
  5. Step 5: Solve for x
    x = 2,343,814,505.03/54,839.68
  6. Step 6: Final answer
    x = 42,739.39

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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.