Finding the Fourth Proportional to 71,968.73, 107,812.77 and 43,818.99
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Solution
The fourth proportional to 71,968.73, 107,812.77 and 43,818.99 is: 65,643.05
Step by Step Solution
- Step 1: Write the proportion equation
71,968.73 : 107,812.77 = 43,818.99 : x - Step 2: Convert to fraction form
71,968.73/107,812.77 = 43,818.99/x - Step 3: Cross multiply
71,968.73x = 107,812.77 × 43,818.99 - Step 4: Simplify right side
71,968.73x = 4,724,246,690.50 - Step 5: Solve for x
x = 4,724,246,690.50/71,968.73 - Step 6: Final answer
x = 65,643.05
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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.