Home / 77,609.07-107,100.38-45,365.85

Finding the Fourth Proportional to 77,609.07, 107,100.38 and 45,365.85

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Solution

The fourth proportional to 77,609.07, 107,100.38 and 45,365.85 is: 62,604.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609.07 : 107,100.38 = 45,365.85 : x
  2. Step 2: Convert to fraction form
    77,609.07/107,100.38 = 45,365.85/x
  3. Step 3: Cross multiply
    77,609.07x = 107,100.38 × 45,365.85
  4. Step 4: Simplify right side
    77,609.07x = 4,858,699,887.44
  5. Step 5: Solve for x
    x = 4,858,699,887.44/77,609.07
  6. Step 6: Final answer
    x = 62,604.79

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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.