Finding the Fourth Proportional to 71,230.02, 106,852.23 and 18,639.96
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Solution
The fourth proportional to 71,230.02, 106,852.23 and 18,639.96 is: 27,961.82
Step by Step Solution
- Step 1: Write the proportion equation
71,230.02 : 106,852.23 = 18,639.96 : x - Step 2: Convert to fraction form
71,230.02/106,852.23 = 18,639.96/x - Step 3: Cross multiply
71,230.02x = 106,852.23 × 18,639.96 - Step 4: Simplify right side
71,230.02x = 1,991,721,293.11 - Step 5: Solve for x
x = 1,991,721,293.11/71,230.02 - Step 6: Final answer
x = 27,961.82
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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.