Finding the Fourth Proportional to 86,252.30, 129,383.94 and 27,090.30
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Solution
The fourth proportional to 86,252.30, 129,383.94 and 27,090.30 is: 40,637.17
Step by Step Solution
- Step 1: Write the proportion equation
86,252.30 : 129,383.94 = 27,090.30 : x - Step 2: Convert to fraction form
86,252.30/129,383.94 = 27,090.30/x - Step 3: Cross multiply
86,252.30x = 129,383.94 × 27,090.30 - Step 4: Simplify right side
86,252.30x = 3,505,049,749.78 - Step 5: Solve for x
x = 3,505,049,749.78/86,252.30 - Step 6: Final answer
x = 40,637.17
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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.