Home / 54,220.40-81,244.20-40,223.60

Finding the Fourth Proportional to 54,220.40, 81,244.20 and 40,223.60

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Solution

The fourth proportional to 54,220.40, 81,244.20 and 40,223.60 is: 60,271.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,220.40 : 81,244.20 = 40,223.60 : x
  2. Step 2: Convert to fraction form
    54,220.40/81,244.20 = 40,223.60/x
  3. Step 3: Cross multiply
    54,220.40x = 81,244.20 × 40,223.60
  4. Step 4: Simplify right side
    54,220.40x = 3,267,934,203.12
  5. Step 5: Solve for x
    x = 3,267,934,203.12/54,220.40
  6. Step 6: Final answer
    x = 60,271.30

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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.