Home / 82,012.04-122,940.30-40,410.44

Finding the Fourth Proportional to 82,012.04, 122,940.30 and 40,410.44

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Solution

The fourth proportional to 82,012.04, 122,940.30 and 40,410.44 is: 60,577.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,012.04 : 122,940.30 = 40,410.44 : x
  2. Step 2: Convert to fraction form
    82,012.04/122,940.30 = 40,410.44/x
  3. Step 3: Cross multiply
    82,012.04x = 122,940.30 × 40,410.44
  4. Step 4: Simplify right side
    82,012.04x = 4,968,071,616.73
  5. Step 5: Solve for x
    x = 4,968,071,616.73/82,012.04
  6. Step 6: Final answer
    x = 60,577.34

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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.