Finding the Fourth Proportional to 68,714.70, 103,104.45 and 51,218.70
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Solution
The fourth proportional to 68,714.70, 103,104.45 and 51,218.70 is: 76,852.20
Step by Step Solution
- Step 1: Write the proportion equation
68,714.70 : 103,104.45 = 51,218.70 : x - Step 2: Convert to fraction form
68,714.70/103,104.45 = 51,218.70/x - Step 3: Cross multiply
68,714.70x = 103,104.45 × 51,218.70 - Step 4: Simplify right side
68,714.70x = 5,280,875,893.22 - Step 5: Solve for x
x = 5,280,875,893.22/68,714.70 - Step 6: Final answer
x = 76,852.20
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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.