Home / 54,003.36-81,004.48-18,464.36

Finding the Fourth Proportional to 54,003.36, 81,004.48 and 18,464.36

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Solution

The fourth proportional to 54,003.36, 81,004.48 and 18,464.36 is: 27,696.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,003.36 : 81,004.48 = 18,464.36 : x
  2. Step 2: Convert to fraction form
    54,003.36/81,004.48 = 18,464.36/x
  3. Step 3: Cross multiply
    54,003.36x = 81,004.48 × 18,464.36
  4. Step 4: Simplify right side
    54,003.36x = 1,495,695,880.33
  5. Step 5: Solve for x
    x = 1,495,695,880.33/54,003.36
  6. Step 6: Final answer
    x = 27,696.35

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1.5x scale

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.