Home / 54,266.40-81,399.60-40,960.80

Finding the Fourth Proportional to 54,266.40, 81,399.60 and 40,960.80

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Solution

The fourth proportional to 54,266.40, 81,399.60 and 40,960.80 is: 61,441.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,266.40 : 81,399.60 = 40,960.80 : x
  2. Step 2: Convert to fraction form
    54,266.40/81,399.60 = 40,960.80/x
  3. Step 3: Cross multiply
    54,266.40x = 81,399.60 × 40,960.80
  4. Step 4: Simplify right side
    54,266.40x = 3,334,192,735.68
  5. Step 5: Solve for x
    x = 3,334,192,735.68/54,266.40
  6. Step 6: Final answer
    x = 61,441.20

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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.