Finding the Fourth Proportional to 77,033.75, 106,269.79 and 48,339.12
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Solution
The fourth proportional to 77,033.75, 106,269.79 and 48,339.12 is: 66,684.90
Step by Step Solution
- Step 1: Write the proportion equation
77,033.75 : 106,269.79 = 48,339.12 : x - Step 2: Convert to fraction form
77,033.75/106,269.79 = 48,339.12/x - Step 3: Cross multiply
77,033.75x = 106,269.79 × 48,339.12 - Step 4: Simplify right side
77,033.75x = 5,136,988,131.18 - Step 5: Solve for x
x = 5,136,988,131.18/77,033.75 - Step 6: Final answer
x = 66,684.90
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1.5x scale
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.