Finding the Fourth Proportional to 68,087.23, 102,130.85 and 21,343.75
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Solution
The fourth proportional to 68,087.23, 102,130.85 and 21,343.75 is: 32,015.63
Step by Step Solution
- Step 1: Write the proportion equation
68,087.23 : 102,130.85 = 21,343.75 : x - Step 2: Convert to fraction form
68,087.23/102,130.85 = 21,343.75/x - Step 3: Cross multiply
68,087.23x = 102,130.85 × 21,343.75 - Step 4: Simplify right side
68,087.23x = 2,179,855,222.97 - Step 5: Solve for x
x = 2,179,855,222.97/68,087.23 - Step 6: Final answer
x = 32,015.63
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1.5x scale
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.