Home / 54,621.42-81,912.28-19,072.75

Finding the Fourth Proportional to 54,621.42, 81,912.28 and 19,072.75

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Solution

The fourth proportional to 54,621.42, 81,912.28 and 19,072.75 is: 28,602.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,621.42 : 81,912.28 = 19,072.75 : x
  2. Step 2: Convert to fraction form
    54,621.42/81,912.28 = 19,072.75/x
  3. Step 3: Cross multiply
    54,621.42x = 81,912.28 × 19,072.75
  4. Step 4: Simplify right side
    54,621.42x = 1,562,292,438.37
  5. Step 5: Solve for x
    x = 1,562,292,438.37/54,621.42
  6. Step 6: Final answer
    x = 28,602.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.