Finding the Fourth Proportional to 77,115.75, 115,620.93 and 41,097.65
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Solution
The fourth proportional to 77,115.75, 115,620.93 and 41,097.65 is: 61,618.38
Step by Step Solution
- Step 1: Write the proportion equation
77,115.75 : 115,620.93 = 41,097.65 : x - Step 2: Convert to fraction form
77,115.75/115,620.93 = 41,097.65/x - Step 3: Cross multiply
77,115.75x = 115,620.93 × 41,097.65 - Step 4: Simplify right side
77,115.75x = 4,751,747,935.71 - Step 5: Solve for x
x = 4,751,747,935.71/77,115.75 - Step 6: Final answer
x = 61,618.38
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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.