Finding the Fourth Proportional to 60,982.08, 91,450.38 and 20,989.88
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Solution
The fourth proportional to 60,982.08, 91,450.38 and 20,989.88 is: 31,476.99
Step by Step Solution
- Step 1: Write the proportion equation
60,982.08 : 91,450.38 = 20,989.88 : x - Step 2: Convert to fraction form
60,982.08/91,450.38 = 20,989.88/x - Step 3: Cross multiply
60,982.08x = 91,450.38 × 20,989.88 - Step 4: Simplify right side
60,982.08x = 1,919,532,502.15 - Step 5: Solve for x
x = 1,919,532,502.15/60,982.08 - Step 6: Final answer
x = 31,476.99
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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.