Finding the Fourth Proportional to 79,843.82, 110,215.96 and 48,006.56
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Solution
The fourth proportional to 79,843.82, 110,215.96 and 48,006.56 is: 66,267.99
Step by Step Solution
- Step 1: Write the proportion equation
79,843.82 : 110,215.96 = 48,006.56 : x - Step 2: Convert to fraction form
79,843.82/110,215.96 = 48,006.56/x - Step 3: Cross multiply
79,843.82x = 110,215.96 × 48,006.56 - Step 4: Simplify right side
79,843.82x = 5,291,089,252.22 - Step 5: Solve for x
x = 5,291,089,252.22/79,843.82 - Step 6: Final answer
x = 66,267.99
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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.