Finding the Fourth Proportional to 84,334.96, 126,487.80 and 31,744.84
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Solution
The fourth proportional to 84,334.96, 126,487.80 and 31,744.84 is: 47,611.75
Step by Step Solution
- Step 1: Write the proportion equation
84,334.96 : 126,487.80 = 31,744.84 : x - Step 2: Convert to fraction form
84,334.96/126,487.80 = 31,744.84/x - Step 3: Cross multiply
84,334.96x = 126,487.80 × 31,744.84 - Step 4: Simplify right side
84,334.96x = 4,015,334,972.95 - Step 5: Solve for x
x = 4,015,334,972.95/84,334.96 - Step 6: Final answer
x = 47,611.75
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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.