Home / 54,219.40-81,242.70-40,222.60

Finding the Fourth Proportional to 54,219.40, 81,242.70 and 40,222.60

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Solution

The fourth proportional to 54,219.40, 81,242.70 and 40,222.60 is: 60,269.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,219.40 : 81,242.70 = 40,222.60 : x
  2. Step 2: Convert to fraction form
    54,219.40/81,242.70 = 40,222.60/x
  3. Step 3: Cross multiply
    54,219.40x = 81,242.70 × 40,222.60
  4. Step 4: Simplify right side
    54,219.40x = 3,267,792,625.02
  5. Step 5: Solve for x
    x = 3,267,792,625.02/54,219.40
  6. Step 6: Final answer
    x = 60,269.80

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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.