Finding the Fourth Proportional to 71,518.68, 107,278.74 and 21,599.19
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Solution
The fourth proportional to 71,518.68, 107,278.74 and 21,599.19 is: 32,399.00
Step by Step Solution
- Step 1: Write the proportion equation
71,518.68 : 107,278.74 = 21,599.19 : x - Step 2: Convert to fraction form
71,518.68/107,278.74 = 21,599.19/x - Step 3: Cross multiply
71,518.68x = 107,278.74 × 21,599.19 - Step 4: Simplify right side
71,518.68x = 2,317,133,888.22 - Step 5: Solve for x
x = 2,317,133,888.22/71,518.68 - Step 6: Final answer
x = 32,399.00
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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.