Finding the Fourth Proportional to 71,148.96, 106,738.68 and 21,232.98
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Solution
The fourth proportional to 71,148.96, 106,738.68 and 21,232.98 is: 31,854.02
Step by Step Solution
- Step 1: Write the proportion equation
71,148.96 : 106,738.68 = 21,232.98 : x - Step 2: Convert to fraction form
71,148.96/106,738.68 = 21,232.98/x - Step 3: Cross multiply
71,148.96x = 106,738.68 × 21,232.98 - Step 4: Simplify right side
71,148.96x = 2,266,380,257.67 - Step 5: Solve for x
x = 2,266,380,257.67/71,148.96 - Step 6: Final answer
x = 31,854.02
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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.