Home / 82,411.05-122,923.74-74,843.10

Finding the Fourth Proportional to 82,411.05, 122,923.74 and 74,843.10

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Solution

The fourth proportional to 82,411.05, 122,923.74 and 74,843.10 is: 111,635.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,411.05 : 122,923.74 = 74,843.10 : x
  2. Step 2: Convert to fraction form
    82,411.05/122,923.74 = 74,843.10/x
  3. Step 3: Cross multiply
    82,411.05x = 122,923.74 × 74,843.10
  4. Step 4: Simplify right side
    82,411.05x = 9,199,993,765.19
  5. Step 5: Solve for x
    x = 9,199,993,765.19/82,411.05
  6. Step 6: Final answer
    x = 111,635.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.