Finding the Fourth Proportional to 71,363.80, 107,045.70 and 36,371.80
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Solution
The fourth proportional to 71,363.80, 107,045.70 and 36,371.80 is: 54,557.70
Step by Step Solution
- Step 1: Write the proportion equation
71,363.80 : 107,045.70 = 36,371.80 : x - Step 2: Convert to fraction form
71,363.80/107,045.70 = 36,371.80/x - Step 3: Cross multiply
71,363.80x = 107,045.70 × 36,371.80 - Step 4: Simplify right side
71,363.80x = 3,893,444,791.26 - Step 5: Solve for x
x = 3,893,444,791.26/71,363.80 - Step 6: Final answer
x = 54,557.70
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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.