Finding the Fourth Proportional to 73,905.68, 110,858.52 and 27,138.32
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Solution
The fourth proportional to 73,905.68, 110,858.52 and 27,138.32 is: 40,707.48
Step by Step Solution
- Step 1: Write the proportion equation
73,905.68 : 110,858.52 = 27,138.32 : x - Step 2: Convert to fraction form
73,905.68/110,858.52 = 27,138.32/x - Step 3: Cross multiply
73,905.68x = 110,858.52 × 27,138.32 - Step 4: Simplify right side
73,905.68x = 3,008,513,990.49 - Step 5: Solve for x
x = 3,008,513,990.49/73,905.68 - Step 6: Final answer
x = 40,707.48
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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.