Home / 74,786.20-112,028.10-46,619.80

Finding the Fourth Proportional to 74,786.20, 112,028.10 and 46,619.80

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Solution

The fourth proportional to 74,786.20, 112,028.10 and 46,619.80 is: 69,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,786.20 : 112,028.10 = 46,619.80 : x
  2. Step 2: Convert to fraction form
    74,786.20/112,028.10 = 46,619.80/x
  3. Step 3: Cross multiply
    74,786.20x = 112,028.10 × 46,619.80
  4. Step 4: Simplify right side
    74,786.20x = 5,222,727,616.38
  5. Step 5: Solve for x
    x = 5,222,727,616.38/74,786.20
  6. Step 6: Final answer
    x = 69,835.45

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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.