Finding the Fourth Proportional to 71,297.69, 106,946.46 and 18,707.09
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Solution
The fourth proportional to 71,297.69, 106,946.46 and 18,707.09 is: 28,060.61
Step by Step Solution
- Step 1: Write the proportion equation
71,297.69 : 106,946.46 = 18,707.09 : x - Step 2: Convert to fraction form
71,297.69/106,946.46 = 18,707.09/x - Step 3: Cross multiply
71,297.69x = 106,946.46 × 18,707.09 - Step 4: Simplify right side
71,297.69x = 2,000,656,517.67 - Step 5: Solve for x
x = 2,000,656,517.67/71,297.69 - Step 6: Final answer
x = 28,060.61
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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.