Finding the Fourth Proportional to 84,975.18, 127,287.78 and 49,830.09
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Solution
The fourth proportional to 84,975.18, 127,287.78 and 49,830.09 is: 74,642.52
Step by Step Solution
- Step 1: Write the proportion equation
84,975.18 : 127,287.78 = 49,830.09 : x - Step 2: Convert to fraction form
84,975.18/127,287.78 = 49,830.09/x - Step 3: Cross multiply
84,975.18x = 127,287.78 × 49,830.09 - Step 4: Simplify right side
84,975.18x = 6,342,761,533.30 - Step 5: Solve for x
x = 6,342,761,533.30/84,975.18 - Step 6: Final answer
x = 74,642.52
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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.