Finding the Fourth Proportional to 76,201.25, 105,147.75 and 43,937.09
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Solution
The fourth proportional to 76,201.25, 105,147.75 and 43,937.09 is: 60,627.43
Step by Step Solution
- Step 1: Write the proportion equation
76,201.25 : 105,147.75 = 43,937.09 : x - Step 2: Convert to fraction form
76,201.25/105,147.75 = 43,937.09/x - Step 3: Cross multiply
76,201.25x = 105,147.75 × 43,937.09 - Step 4: Simplify right side
76,201.25x = 4,619,885,629.31 - Step 5: Solve for x
x = 4,619,885,629.31/76,201.25 - Step 6: Final answer
x = 60,627.43
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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.