Finding the Fourth Proportional to 68,610.10, 102,915.15 and 27,051.70
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Solution
The fourth proportional to 68,610.10, 102,915.15 and 27,051.70 is: 40,577.55
Step by Step Solution
- Step 1: Write the proportion equation
68,610.10 : 102,915.15 = 27,051.70 : x - Step 2: Convert to fraction form
68,610.10/102,915.15 = 27,051.70/x - Step 3: Cross multiply
68,610.10x = 102,915.15 × 27,051.70 - Step 4: Simplify right side
68,610.10x = 2,784,029,763.26 - Step 5: Solve for x
x = 2,784,029,763.26/68,610.10 - Step 6: Final answer
x = 40,577.55
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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.