Finding the Fourth Proportional to 84,917.75, 127,376.61 and 38,115.95
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Solution
The fourth proportional to 84,917.75, 127,376.61 and 38,115.95 is: 57,173.92
Step by Step Solution
- Step 1: Write the proportion equation
84,917.75 : 127,376.61 = 38,115.95 : x - Step 2: Convert to fraction form
84,917.75/127,376.61 = 38,115.95/x - Step 3: Cross multiply
84,917.75x = 127,376.61 × 38,115.95 - Step 4: Simplify right side
84,917.75x = 4,855,080,497.93 - Step 5: Solve for x
x = 4,855,080,497.93/84,917.75 - Step 6: Final answer
x = 57,173.92
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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.