Finding the Fourth Proportional to 68,022.29, 102,031.70 and 18,102.81
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Solution
The fourth proportional to 68,022.29, 102,031.70 and 18,102.81 is: 27,153.75
Step by Step Solution
- Step 1: Write the proportion equation
68,022.29 : 102,031.70 = 18,102.81 : x - Step 2: Convert to fraction form
68,022.29/102,031.70 = 18,102.81/x - Step 3: Cross multiply
68,022.29x = 102,031.70 × 18,102.81 - Step 4: Simplify right side
68,022.29x = 1,847,060,388.56 - Step 5: Solve for x
x = 1,847,060,388.56/68,022.29 - Step 6: Final answer
x = 27,153.75
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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.