Finding the Fourth Proportional to 84,161.14, 126,121.40 and 61,799.08
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Solution
The fourth proportional to 84,161.14, 126,121.40 and 61,799.08 is: 92,610.28
Step by Step Solution
- Step 1: Write the proportion equation
84,161.14 : 126,121.40 = 61,799.08 : x - Step 2: Convert to fraction form
84,161.14/126,121.40 = 61,799.08/x - Step 3: Cross multiply
84,161.14x = 126,121.40 × 61,799.08 - Step 4: Simplify right side
84,161.14x = 7,794,186,488.31 - Step 5: Solve for x
x = 7,794,186,488.31/84,161.14 - Step 6: Final answer
x = 92,610.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.