Home / 81,181.05-111,957.24-50,969.16

Finding the Fourth Proportional to 81,181.05, 111,957.24 and 50,969.16

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Solution

The fourth proportional to 81,181.05, 111,957.24 and 50,969.16 is: 70,291.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,181.05 : 111,957.24 = 50,969.16 : x
  2. Step 2: Convert to fraction form
    81,181.05/111,957.24 = 50,969.16/x
  3. Step 3: Cross multiply
    81,181.05x = 111,957.24 × 50,969.16
  4. Step 4: Simplify right side
    81,181.05x = 5,706,366,478.72
  5. Step 5: Solve for x
    x = 5,706,366,478.72/81,181.05
  6. Step 6: Final answer
    x = 70,291.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.