Home / 77,745.22-107,283.96-43,755.12

Finding the Fourth Proportional to 77,745.22, 107,283.96 and 43,755.12

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Solution

The fourth proportional to 77,745.22, 107,283.96 and 43,755.12 is: 60,379.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,745.22 : 107,283.96 = 43,755.12 : x
  2. Step 2: Convert to fraction form
    77,745.22/107,283.96 = 43,755.12/x
  3. Step 3: Cross multiply
    77,745.22x = 107,283.96 × 43,755.12
  4. Step 4: Simplify right side
    77,745.22x = 4,694,222,543.88
  5. Step 5: Solve for x
    x = 4,694,222,543.88/77,745.22
  6. Step 6: Final answer
    x = 60,379.57

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1.5x scale

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.