Home / 54,644.06-81,911.37-21,318.28

Finding the Fourth Proportional to 54,644.06, 81,911.37 and 21,318.28

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Solution

The fourth proportional to 54,644.06, 81,911.37 and 21,318.28 is: 31,956.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,644.06 : 81,911.37 = 21,318.28 : x
  2. Step 2: Convert to fraction form
    54,644.06/81,911.37 = 21,318.28/x
  3. Step 3: Cross multiply
    54,644.06x = 81,911.37 × 21,318.28
  4. Step 4: Simplify right side
    54,644.06x = 1,746,209,396.01
  5. Step 5: Solve for x
    x = 1,746,209,396.01/54,644.06
  6. Step 6: Final answer
    x = 31,956.07

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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.