Finding the Fourth Proportional to 84,014.36, 115,942.80 and 48,211.64
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Solution
The fourth proportional to 84,014.36, 115,942.80 and 48,211.64 is: 66,533.78
Step by Step Solution
- Step 1: Write the proportion equation
84,014.36 : 115,942.80 = 48,211.64 : x - Step 2: Convert to fraction form
84,014.36/115,942.80 = 48,211.64/x - Step 3: Cross multiply
84,014.36x = 115,942.80 × 48,211.64 - Step 4: Simplify right side
84,014.36x = 5,589,792,534.19 - Step 5: Solve for x
x = 5,589,792,534.19/84,014.36 - Step 6: Final answer
x = 66,533.78
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1.5x scale
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.