Finding the Fourth Proportional to 73,902.09, 110,869.53 and 21,307.48
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Solution
The fourth proportional to 73,902.09, 110,869.53 and 21,307.48 is: 31,965.95
Step by Step Solution
- Step 1: Write the proportion equation
73,902.09 : 110,869.53 = 21,307.48 : x - Step 2: Convert to fraction form
73,902.09/110,869.53 = 21,307.48/x - Step 3: Cross multiply
73,902.09x = 110,869.53 × 21,307.48 - Step 4: Simplify right side
73,902.09x = 2,362,350,293.08 - Step 5: Solve for x
x = 2,362,350,293.08/73,902.09 - Step 6: Final answer
x = 31,965.95
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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.