Finding the Fourth Proportional to 86,202.84, 118,961.37 and 47,965.44
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Solution
The fourth proportional to 86,202.84, 118,961.37 and 47,965.44 is: 66,193.11
Step by Step Solution
- Step 1: Write the proportion equation
86,202.84 : 118,961.37 = 47,965.44 : x - Step 2: Convert to fraction form
86,202.84/118,961.37 = 47,965.44/x - Step 3: Cross multiply
86,202.84x = 118,961.37 × 47,965.44 - Step 4: Simplify right side
86,202.84x = 5,706,034,455.05 - Step 5: Solve for x
x = 5,706,034,455.05/86,202.84 - Step 6: Final answer
x = 66,193.11
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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.