Finding the Fourth Proportional to 77,087.68, 115,647.84 and 27,165.76
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Solution
The fourth proportional to 77,087.68, 115,647.84 and 27,165.76 is: 40,754.39
Step by Step Solution
- Step 1: Write the proportion equation
77,087.68 : 115,647.84 = 27,165.76 : x - Step 2: Convert to fraction form
77,087.68/115,647.84 = 27,165.76/x - Step 3: Cross multiply
77,087.68x = 115,647.84 × 27,165.76 - Step 4: Simplify right side
77,087.68x = 3,141,661,465.96 - Step 5: Solve for x
x = 3,141,661,465.96/77,087.68 - Step 6: Final answer
x = 40,754.39
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1.5x scale
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.