Home / 49,480.40-74,220.60-46,629.20

Finding the Fourth Proportional to 49,480.40, 74,220.60 and 46,629.20

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Solution

The fourth proportional to 49,480.40, 74,220.60 and 46,629.20 is: 69,943.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,480.40 : 74,220.60 = 46,629.20 : x
  2. Step 2: Convert to fraction form
    49,480.40/74,220.60 = 46,629.20/x
  3. Step 3: Cross multiply
    49,480.40x = 74,220.60 × 46,629.20
  4. Step 4: Simplify right side
    49,480.40x = 3,460,847,201.52
  5. Step 5: Solve for x
    x = 3,460,847,201.52/49,480.40
  6. Step 6: Final answer
    x = 69,943.80

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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.