Finding the Fourth Proportional to 68,140.73, 102,211.99 and 21,393.60
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Solution
The fourth proportional to 68,140.73, 102,211.99 and 21,393.60 is: 32,090.68
Step by Step Solution
- Step 1: Write the proportion equation
68,140.73 : 102,211.99 = 21,393.60 : x - Step 2: Convert to fraction form
68,140.73/102,211.99 = 21,393.60/x - Step 3: Cross multiply
68,140.73x = 102,211.99 × 21,393.60 - Step 4: Simplify right side
68,140.73x = 2,186,682,429.26 - Step 5: Solve for x
x = 2,186,682,429.26/68,140.73 - Step 6: Final answer
x = 32,090.68
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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.