Home / 54,490.14-81,719.33-21,202.28

Finding the Fourth Proportional to 54,490.14, 81,719.33 and 21,202.28

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Solution

The fourth proportional to 54,490.14, 81,719.33 and 21,202.28 is: 31,797.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,490.14 : 81,719.33 = 21,202.28 : x
  2. Step 2: Convert to fraction form
    54,490.14/81,719.33 = 21,202.28/x
  3. Step 3: Cross multiply
    54,490.14x = 81,719.33 × 21,202.28
  4. Step 4: Simplify right side
    54,490.14x = 1,732,636,116.07
  5. Step 5: Solve for x
    x = 1,732,636,116.07/54,490.14
  6. Step 6: Final answer
    x = 31,797.24

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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.