Finding the Fourth Proportional to 84,135.68, 126,204.62 and 27,975.79
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Solution
The fourth proportional to 84,135.68, 126,204.62 and 27,975.79 is: 41,964.05
Step by Step Solution
- Step 1: Write the proportion equation
84,135.68 : 126,204.62 = 27,975.79 : x - Step 2: Convert to fraction form
84,135.68/126,204.62 = 27,975.79/x - Step 3: Cross multiply
84,135.68x = 126,204.62 × 27,975.79 - Step 4: Simplify right side
84,135.68x = 3,530,673,946.15 - Step 5: Solve for x
x = 3,530,673,946.15/84,135.68 - Step 6: Final answer
x = 41,964.05
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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.