Finding the Fourth Proportional to 68,344.10, 102,516.15 and 61,201.70
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Solution
The fourth proportional to 68,344.10, 102,516.15 and 61,201.70 is: 91,802.55
Step by Step Solution
- Step 1: Write the proportion equation
68,344.10 : 102,516.15 = 61,201.70 : x - Step 2: Convert to fraction form
68,344.10/102,516.15 = 61,201.70/x - Step 3: Cross multiply
68,344.10x = 102,516.15 × 61,201.70 - Step 4: Simplify right side
68,344.10x = 6,274,162,657.46 - Step 5: Solve for x
x = 6,274,162,657.46/68,344.10 - Step 6: Final answer
x = 91,802.55
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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.