Finding the Fourth Proportional to 68,258.19, 102,380.36 and 18,331.80
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Solution
The fourth proportional to 68,258.19, 102,380.36 and 18,331.80 is: 27,495.84
Step by Step Solution
- Step 1: Write the proportion equation
68,258.19 : 102,380.36 = 18,331.80 : x - Step 2: Convert to fraction form
68,258.19/102,380.36 = 18,331.80/x - Step 3: Cross multiply
68,258.19x = 102,380.36 × 18,331.80 - Step 4: Simplify right side
68,258.19x = 1,876,816,073.33 - Step 5: Solve for x
x = 1,876,816,073.33/68,258.19 - Step 6: Final answer
x = 27,495.84
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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.