Finding the Fourth Proportional to 71,813.94, 107,728.30 and 27,477.98
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Solution
The fourth proportional to 71,813.94, 107,728.30 and 27,477.98 is: 41,219.80
Step by Step Solution
- Step 1: Write the proportion equation
71,813.94 : 107,728.30 = 27,477.98 : x - Step 2: Convert to fraction form
71,813.94/107,728.30 = 27,477.98/x - Step 3: Cross multiply
71,813.94x = 107,728.30 × 27,477.98 - Step 4: Simplify right side
71,813.94x = 2,960,156,072.83 - Step 5: Solve for x
x = 2,960,156,072.83/71,813.94 - Step 6: Final answer
x = 41,219.80
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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.