Home / 54,606.12-81,860.46-21,318.48

Finding the Fourth Proportional to 54,606.12, 81,860.46 and 21,318.48

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Solution

The fourth proportional to 54,606.12, 81,860.46 and 21,318.48 is: 31,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,606.12 : 81,860.46 = 21,318.48 : x
  2. Step 2: Convert to fraction form
    54,606.12/81,860.46 = 21,318.48/x
  3. Step 3: Cross multiply
    54,606.12x = 81,860.46 × 21,318.48
  4. Step 4: Simplify right side
    54,606.12x = 1,745,140,579.30
  5. Step 5: Solve for x
    x = 1,745,140,579.30/54,606.12
  6. Step 6: Final answer
    x = 31,958.70

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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.