Finding the Fourth Proportional to 76,709.62, 115,057.14 and 26,780.41
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Solution
The fourth proportional to 76,709.62, 115,057.14 and 26,780.41 is: 40,168.07
Step by Step Solution
- Step 1: Write the proportion equation
76,709.62 : 115,057.14 = 26,780.41 : x - Step 2: Convert to fraction form
76,709.62/115,057.14 = 26,780.41/x - Step 3: Cross multiply
76,709.62x = 115,057.14 × 26,780.41 - Step 4: Simplify right side
76,709.62x = 3,081,277,382.63 - Step 5: Solve for x
x = 3,081,277,382.63/76,709.62 - Step 6: Final answer
x = 40,168.07
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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.