Home / 74,734.22-103,074.88-47,879.21

Finding the Fourth Proportional to 74,734.22, 103,074.88 and 47,879.21

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Solution

The fourth proportional to 74,734.22, 103,074.88 and 47,879.21 is: 66,035.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,734.22 : 103,074.88 = 47,879.21 : x
  2. Step 2: Convert to fraction form
    74,734.22/103,074.88 = 47,879.21/x
  3. Step 3: Cross multiply
    74,734.22x = 103,074.88 × 47,879.21
  4. Step 4: Simplify right side
    74,734.22x = 4,935,143,825.24
  5. Step 5: Solve for x
    x = 4,935,143,825.24/74,734.22
  6. Step 6: Final answer
    x = 66,035.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.