Home / 54,942.28-75,821.82-31,072.50

Finding the Fourth Proportional to 54,942.28, 75,821.82 and 31,072.50

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Solution

The fourth proportional to 54,942.28, 75,821.82 and 31,072.50 is: 42,880.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,942.28 : 75,821.82 = 31,072.50 : x
  2. Step 2: Convert to fraction form
    54,942.28/75,821.82 = 31,072.50/x
  3. Step 3: Cross multiply
    54,942.28x = 75,821.82 × 31,072.50
  4. Step 4: Simplify right side
    54,942.28x = 2,355,973,501.95
  5. Step 5: Solve for x
    x = 2,355,973,501.95/54,942.28
  6. Step 6: Final answer
    x = 42,880.88

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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.