Home / 54,419.64-81,629.45-19,359.60

Finding the Fourth Proportional to 54,419.64, 81,629.45 and 19,359.60

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Solution

The fourth proportional to 54,419.64, 81,629.45 and 19,359.60 is: 29,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,419.64 : 81,629.45 = 19,359.60 : x
  2. Step 2: Convert to fraction form
    54,419.64/81,629.45 = 19,359.60/x
  3. Step 3: Cross multiply
    54,419.64x = 81,629.45 × 19,359.60
  4. Step 4: Simplify right side
    54,419.64x = 1,580,313,500.22
  5. Step 5: Solve for x
    x = 1,580,313,500.22/54,419.64
  6. Step 6: Final answer
    x = 29,039.40

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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.