Home / 66,518.80-99,778.20-41,716.60

Finding the Fourth Proportional to 66,518.80, 99,778.20 and 41,716.60

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Solution

The fourth proportional to 66,518.80, 99,778.20 and 41,716.60 is: 62,574.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518.80 : 99,778.20 = 41,716.60 : x
  2. Step 2: Convert to fraction form
    66,518.80/99,778.20 = 41,716.60/x
  3. Step 3: Cross multiply
    66,518.80x = 99,778.20 × 41,716.60
  4. Step 4: Simplify right side
    66,518.80x = 4,162,407,258.12
  5. Step 5: Solve for x
    x = 4,162,407,258.12/66,518.80
  6. Step 6: Final answer
    x = 62,574.90

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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.