Finding the Fourth Proportional to 98,241.44, 135,563.28 and 55,791.68
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Solution
The fourth proportional to 98,241.44, 135,563.28 and 55,791.68 is: 76,986.89
Step by Step Solution
- Step 1: Write the proportion equation
98,241.44 : 135,563.28 = 55,791.68 : x - Step 2: Convert to fraction form
98,241.44/135,563.28 = 55,791.68/x - Step 3: Cross multiply
98,241.44x = 135,563.28 × 55,791.68 - Step 4: Simplify right side
98,241.44x = 7,563,303,137.51 - Step 5: Solve for x
x = 7,563,303,137.51/98,241.44 - Step 6: Final answer
x = 76,986.89
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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.