Home / 54,227.90-81,334.08-20,963.60

Finding the Fourth Proportional to 54,227.90, 81,334.08 and 20,963.60

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Solution

The fourth proportional to 54,227.90, 81,334.08 and 20,963.60 is: 31,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,227.90 : 81,334.08 = 20,963.60 : x
  2. Step 2: Convert to fraction form
    54,227.90/81,334.08 = 20,963.60/x
  3. Step 3: Cross multiply
    54,227.90x = 81,334.08 × 20,963.60
  4. Step 4: Simplify right side
    54,227.90x = 1,705,055,119.49
  5. Step 5: Solve for x
    x = 1,705,055,119.49/54,227.90
  6. Step 6: Final answer
    x = 31,442.40

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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.