Home / 54,202.18-81,256.55-20,945.58

Finding the Fourth Proportional to 54,202.18, 81,256.55 and 20,945.58

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Solution

The fourth proportional to 54,202.18, 81,256.55 and 20,945.58 is: 31,400.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,202.18 : 81,256.55 = 20,945.58 : x
  2. Step 2: Convert to fraction form
    54,202.18/81,256.55 = 20,945.58/x
  3. Step 3: Cross multiply
    54,202.18x = 81,256.55 × 20,945.58
  4. Step 4: Simplify right side
    54,202.18x = 1,701,965,568.55
  5. Step 5: Solve for x
    x = 1,701,965,568.55/54,202.18
  6. Step 6: Final answer
    x = 31,400.32

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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.