Home / 54,138.68-74,711.91-30,266.66

Finding the Fourth Proportional to 54,138.68, 74,711.91 and 30,266.66

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Solution

The fourth proportional to 54,138.68, 74,711.91 and 30,266.66 is: 41,768.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,138.68 : 74,711.91 = 30,266.66 : x
  2. Step 2: Convert to fraction form
    54,138.68/74,711.91 = 30,266.66/x
  3. Step 3: Cross multiply
    54,138.68x = 74,711.91 × 30,266.66
  4. Step 4: Simplify right side
    54,138.68x = 2,261,279,977.92
  5. Step 5: Solve for x
    x = 2,261,279,977.92/54,138.68
  6. Step 6: Final answer
    x = 41,768.29

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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.