Home / 57,180.40-85,819.20-46,099.60

Finding the Fourth Proportional to 57,180.40, 85,819.20 and 46,099.60

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Solution

The fourth proportional to 57,180.40, 85,819.20 and 46,099.60 is: 69,188.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,180.40 : 85,819.20 = 46,099.60 : x
  2. Step 2: Convert to fraction form
    57,180.40/85,819.20 = 46,099.60/x
  3. Step 3: Cross multiply
    57,180.40x = 85,819.20 × 46,099.60
  4. Step 4: Simplify right side
    57,180.40x = 3,956,230,792.32
  5. Step 5: Solve for x
    x = 3,956,230,792.32/57,180.40
  6. Step 6: Final answer
    x = 69,188.58

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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.