Finding the Fourth Proportional to 78,136.26, 107,822.71 and 44,146.18
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Solution
The fourth proportional to 78,136.26, 107,822.71 and 44,146.18 is: 60,918.72
Step by Step Solution
- Step 1: Write the proportion equation
78,136.26 : 107,822.71 = 44,146.18 : x - Step 2: Convert to fraction form
78,136.26/107,822.71 = 44,146.18/x - Step 3: Cross multiply
78,136.26x = 107,822.71 × 44,146.18 - Step 4: Simplify right side
78,136.26x = 4,759,960,953.71 - Step 5: Solve for x
x = 4,759,960,953.71/78,136.26 - Step 6: Final answer
x = 60,918.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.