Home / 82,410.78-123,575.22-26,243.55

Finding the Fourth Proportional to 82,410.78, 123,575.22 and 26,243.55

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Solution

The fourth proportional to 82,410.78, 123,575.22 and 26,243.55 is: 39,352.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,410.78 : 123,575.22 = 26,243.55 : x
  2. Step 2: Convert to fraction form
    82,410.78/123,575.22 = 26,243.55/x
  3. Step 3: Cross multiply
    82,410.78x = 123,575.22 × 26,243.55
  4. Step 4: Simplify right side
    82,410.78x = 3,243,052,464.83
  5. Step 5: Solve for x
    x = 3,243,052,464.83/82,410.78
  6. Step 6: Final answer
    x = 39,352.28

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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.