Finding the Fourth Proportional to 84,861.84, 127,232.16 and 39,858.06
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Solution
The fourth proportional to 84,861.84, 127,232.16 and 39,858.06 is: 59,758.63
Step by Step Solution
- Step 1: Write the proportion equation
84,861.84 : 127,232.16 = 39,858.06 : x - Step 2: Convert to fraction form
84,861.84/127,232.16 = 39,858.06/x - Step 3: Cross multiply
84,861.84x = 127,232.16 × 39,858.06 - Step 4: Simplify right side
84,861.84x = 5,071,227,067.21 - Step 5: Solve for x
x = 5,071,227,067.21/84,861.84 - Step 6: Final answer
x = 59,758.63
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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.