Home / 54,268.80-81,403.20-38,522.40

Finding the Fourth Proportional to 54,268.80, 81,403.20 and 38,522.40

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Solution

The fourth proportional to 54,268.80, 81,403.20 and 38,522.40 is: 57,783.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,268.80 : 81,403.20 = 38,522.40 : x
  2. Step 2: Convert to fraction form
    54,268.80/81,403.20 = 38,522.40/x
  3. Step 3: Cross multiply
    54,268.80x = 81,403.20 × 38,522.40
  4. Step 4: Simplify right side
    54,268.80x = 3,135,846,631.68
  5. Step 5: Solve for x
    x = 3,135,846,631.68/54,268.80
  6. Step 6: Final answer
    x = 57,783.60

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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.