Finding the Fourth Proportional to 71,377.05, 107,114.03 and 38,120.98
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Solution
The fourth proportional to 71,377.05, 107,114.03 and 38,120.98 is: 57,207.35
Step by Step Solution
- Step 1: Write the proportion equation
71,377.05 : 107,114.03 = 38,120.98 : x - Step 2: Convert to fraction form
71,377.05/107,114.03 = 38,120.98/x - Step 3: Cross multiply
71,377.05x = 107,114.03 × 38,120.98 - Step 4: Simplify right side
71,377.05x = 4,083,291,795.35 - Step 5: Solve for x
x = 4,083,291,795.35/71,377.05 - Step 6: Final answer
x = 57,207.35
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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.