Finding the Fourth Proportional to 77,181.77, 115,786.43 and 27,290.84
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Solution
The fourth proportional to 77,181.77, 115,786.43 and 27,290.84 is: 40,941.12
Step by Step Solution
- Step 1: Write the proportion equation
77,181.77 : 115,786.43 = 27,290.84 : x - Step 2: Convert to fraction form
77,181.77/115,786.43 = 27,290.84/x - Step 3: Cross multiply
77,181.77x = 115,786.43 × 27,290.84 - Step 4: Simplify right side
77,181.77x = 3,159,908,322.26 - Step 5: Solve for x
x = 3,159,908,322.26/77,181.77 - Step 6: Final answer
x = 40,941.12
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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.