Finding the Fourth Proportional to 84,997.12, 117,294.36 and 47,270.56
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Solution
The fourth proportional to 84,997.12, 117,294.36 and 47,270.56 is: 65,232.45
Step by Step Solution
- Step 1: Write the proportion equation
84,997.12 : 117,294.36 = 47,270.56 : x - Step 2: Convert to fraction form
84,997.12/117,294.36 = 47,270.56/x - Step 3: Cross multiply
84,997.12x = 117,294.36 × 47,270.56 - Step 4: Simplify right side
84,997.12x = 5,544,570,082.04 - Step 5: Solve for x
x = 5,544,570,082.04/84,997.12 - Step 6: Final answer
x = 65,232.45
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.