Home / 54,138.62-74,716.72-31,484.54

Finding the Fourth Proportional to 54,138.62, 74,716.72 and 31,484.54

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Solution

The fourth proportional to 54,138.62, 74,716.72 and 31,484.54 is: 43,451.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,138.62 : 74,716.72 = 31,484.54 : x
  2. Step 2: Convert to fraction form
    54,138.62/74,716.72 = 31,484.54/x
  3. Step 3: Cross multiply
    54,138.62x = 74,716.72 × 31,484.54
  4. Step 4: Simplify right side
    54,138.62x = 2,352,421,559.51
  5. Step 5: Solve for x
    x = 2,352,421,559.51/54,138.62
  6. Step 6: Final answer
    x = 43,451.82

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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.