Home / 81,923.64-122,688.60-46,756.68

Finding the Fourth Proportional to 81,923.64, 122,688.60 and 46,756.68

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Solution

The fourth proportional to 81,923.64, 122,688.60 and 46,756.68 is: 70,022.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,923.64 : 122,688.60 = 46,756.68 : x
  2. Step 2: Convert to fraction form
    81,923.64/122,688.60 = 46,756.68/x
  3. Step 3: Cross multiply
    81,923.64x = 122,688.60 × 46,756.68
  4. Step 4: Simplify right side
    81,923.64x = 5,736,511,609.85
  5. Step 5: Solve for x
    x = 5,736,511,609.85/81,923.64
  6. Step 6: Final answer
    x = 70,022.67

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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.