Home / 78,169.04-117,410.39-46,640.67

Finding the Fourth Proportional to 78,169.04, 117,410.39 and 46,640.67

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Solution

The fourth proportional to 78,169.04, 117,410.39 and 46,640.67 is: 70,054.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,169.04 : 117,410.39 = 46,640.67 : x
  2. Step 2: Convert to fraction form
    78,169.04/117,410.39 = 46,640.67/x
  3. Step 3: Cross multiply
    78,169.04x = 117,410.39 × 46,640.67
  4. Step 4: Simplify right side
    78,169.04x = 5,476,099,254.56
  5. Step 5: Solve for x
    x = 5,476,099,254.56/78,169.04
  6. Step 6: Final answer
    x = 70,054.58

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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.