Finding the Fourth Proportional to 71,390.45, 107,057.99 and 38,092.35
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Solution
The fourth proportional to 71,390.45, 107,057.99 and 38,092.35 is: 57,123.75
Step by Step Solution
- Step 1: Write the proportion equation
71,390.45 : 107,057.99 = 38,092.35 : x - Step 2: Convert to fraction form
71,390.45/107,057.99 = 38,092.35/x - Step 3: Cross multiply
71,390.45x = 107,057.99 × 38,092.35 - Step 4: Simplify right side
71,390.45x = 4,078,089,976.29 - Step 5: Solve for x
x = 4,078,089,976.29/71,390.45 - Step 6: Final answer
x = 57,123.75
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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.