Home / 54,214.56-81,192.16-34,431.20

Finding the Fourth Proportional to 54,214.56, 81,192.16 and 34,431.20

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Solution

The fourth proportional to 54,214.56, 81,192.16 and 34,431.20 is: 51,564.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,214.56 : 81,192.16 = 34,431.20 : x
  2. Step 2: Convert to fraction form
    54,214.56/81,192.16 = 34,431.20/x
  3. Step 3: Cross multiply
    54,214.56x = 81,192.16 × 34,431.20
  4. Step 4: Simplify right side
    54,214.56x = 2,795,543,499.39
  5. Step 5: Solve for x
    x = 2,795,543,499.39/54,214.56
  6. Step 6: Final answer
    x = 51,564.44

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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.