Finding the Fourth Proportional to 98,412.64, 135,816.96 and 55,968.64
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Solution
The fourth proportional to 98,412.64, 135,816.96 and 55,968.64 is: 77,241.00
Step by Step Solution
- Step 1: Write the proportion equation
98,412.64 : 135,816.96 = 55,968.64 : x - Step 2: Convert to fraction form
98,412.64/135,816.96 = 55,968.64/x - Step 3: Cross multiply
98,412.64x = 135,816.96 × 55,968.64 - Step 4: Simplify right side
98,412.64x = 7,601,490,540.13 - Step 5: Solve for x
x = 7,601,490,540.13/98,412.64 - Step 6: Final answer
x = 77,241.00
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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.