Finding the Fourth Proportional to 77,112.40, 106,374.08 and 46,906.96
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Solution
The fourth proportional to 77,112.40, 106,374.08 and 46,906.96 is: 64,706.65
Step by Step Solution
- Step 1: Write the proportion equation
77,112.40 : 106,374.08 = 46,906.96 : x - Step 2: Convert to fraction form
77,112.40/106,374.08 = 46,906.96/x - Step 3: Cross multiply
77,112.40x = 106,374.08 × 46,906.96 - Step 4: Simplify right side
77,112.40x = 4,989,684,715.60 - Step 5: Solve for x
x = 4,989,684,715.60/77,112.40 - Step 6: Final answer
x = 64,706.65
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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.