Finding the Fourth Proportional to 68,221.18, 102,142.84 and 34,869.44
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Solution
The fourth proportional to 68,221.18, 102,142.84 and 34,869.44 is: 52,207.59
Step by Step Solution
- Step 1: Write the proportion equation
68,221.18 : 102,142.84 = 34,869.44 : x - Step 2: Convert to fraction form
68,221.18/102,142.84 = 34,869.44/x - Step 3: Cross multiply
68,221.18x = 102,142.84 × 34,869.44 - Step 4: Simplify right side
68,221.18x = 3,561,663,630.81 - Step 5: Solve for x
x = 3,561,663,630.81/68,221.18 - Step 6: Final answer
x = 52,207.59
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1.5x scale
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.