Home / 77,755.13-107,293.78-43,765.37

Finding the Fourth Proportional to 77,755.13, 107,293.78 and 43,765.37

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Solution

The fourth proportional to 77,755.13, 107,293.78 and 43,765.37 is: 60,391.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,755.13 : 107,293.78 = 43,765.37 : x
  2. Step 2: Convert to fraction form
    77,755.13/107,293.78 = 43,765.37/x
  3. Step 3: Cross multiply
    77,755.13x = 107,293.78 × 43,765.37
  4. Step 4: Simplify right side
    77,755.13x = 4,695,751,980.40
  5. Step 5: Solve for x
    x = 4,695,751,980.40/77,755.13
  6. Step 6: Final answer
    x = 60,391.54

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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.