Finding the Fourth Proportional to 84,630.81, 126,995.42 and 66,752.08
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Solution
The fourth proportional to 84,630.81, 126,995.42 and 66,752.08 is: 100,166.93
Step by Step Solution
- Step 1: Write the proportion equation
84,630.81 : 126,995.42 = 66,752.08 : x - Step 2: Convert to fraction form
84,630.81/126,995.42 = 66,752.08/x - Step 3: Cross multiply
84,630.81x = 126,995.42 × 66,752.08 - Step 4: Simplify right side
84,630.81x = 8,477,208,586.08 - Step 5: Solve for x
x = 8,477,208,586.08/84,630.81 - Step 6: Final answer
x = 100,166.93
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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.