Home / 54,839.18-75,679.62-30,969.44

Finding the Fourth Proportional to 54,839.18, 75,679.62 and 30,969.44

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Solution

The fourth proportional to 54,839.18, 75,679.62 and 30,969.44 is: 42,738.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,839.18 : 75,679.62 = 30,969.44 : x
  2. Step 2: Convert to fraction form
    54,839.18/75,679.62 = 30,969.44/x
  3. Step 3: Cross multiply
    54,839.18x = 75,679.62 × 30,969.44
  4. Step 4: Simplify right side
    54,839.18x = 2,343,755,240.08
  5. Step 5: Solve for x
    x = 2,343,755,240.08/54,839.18
  6. Step 6: Final answer
    x = 42,738.70

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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.