Finding the Fourth Proportional to 73,782.63, 101,905.02 and 53,729.19
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Solution
The fourth proportional to 73,782.63, 101,905.02 and 53,729.19 is: 74,208.17
Step by Step Solution
- Step 1: Write the proportion equation
73,782.63 : 101,905.02 = 53,729.19 : x - Step 2: Convert to fraction form
73,782.63/101,905.02 = 53,729.19/x - Step 3: Cross multiply
73,782.63x = 101,905.02 × 53,729.19 - Step 4: Simplify right side
73,782.63x = 5,475,274,181.53 - Step 5: Solve for x
x = 5,475,274,181.53/73,782.63 - Step 6: Final answer
x = 74,208.17
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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.