Finding the Fourth Proportional to 80,647.80, 120,971.70 and 24,487.80
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Solution
The fourth proportional to 80,647.80, 120,971.70 and 24,487.80 is: 36,731.70
Step by Step Solution
- Step 1: Write the proportion equation
80,647.80 : 120,971.70 = 24,487.80 : x - Step 2: Convert to fraction form
80,647.80/120,971.70 = 24,487.80/x - Step 3: Cross multiply
80,647.80x = 120,971.70 × 24,487.80 - Step 4: Simplify right side
80,647.80x = 2,962,330,795.26 - Step 5: Solve for x
x = 2,962,330,795.26/80,647.80 - Step 6: Final answer
x = 36,731.70
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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.