Home / 54,345.88-81,530.58-16,905.28

Finding the Fourth Proportional to 54,345.88, 81,530.58 and 16,905.28

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Solution

The fourth proportional to 54,345.88, 81,530.58 and 16,905.28 is: 25,361.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,345.88 : 81,530.58 = 16,905.28 : x
  2. Step 2: Convert to fraction form
    54,345.88/81,530.58 = 16,905.28/x
  3. Step 3: Cross multiply
    54,345.88x = 81,530.58 × 16,905.28
  4. Step 4: Simplify right side
    54,345.88x = 1,378,297,283.46
  5. Step 5: Solve for x
    x = 1,378,297,283.46/54,345.88
  6. Step 6: Final answer
    x = 25,361.58

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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.