Finding the Fourth Proportional to 71,264.46, 106,888.50 and 18,678.09
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Solution
The fourth proportional to 71,264.46, 106,888.50 and 18,678.09 is: 28,014.99
Step by Step Solution
- Step 1: Write the proportion equation
71,264.46 : 106,888.50 = 18,678.09 : x - Step 2: Convert to fraction form
71,264.46/106,888.50 = 18,678.09/x - Step 3: Cross multiply
71,264.46x = 106,888.50 × 18,678.09 - Step 4: Simplify right side
71,264.46x = 1,996,473,022.97 - Step 5: Solve for x
x = 1,996,473,022.97/71,264.46 - Step 6: Final answer
x = 28,014.99
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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.