Finding the Fourth Proportional to 83,796.12, 115,639.08 and 46,072.80
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Solution
The fourth proportional to 83,796.12, 115,639.08 and 46,072.80 is: 63,580.70
Step by Step Solution
- Step 1: Write the proportion equation
83,796.12 : 115,639.08 = 46,072.80 : x - Step 2: Convert to fraction form
83,796.12/115,639.08 = 46,072.80/x - Step 3: Cross multiply
83,796.12x = 115,639.08 × 46,072.80 - Step 4: Simplify right side
83,796.12x = 5,327,816,205.02 - Step 5: Solve for x
x = 5,327,816,205.02/83,796.12 - Step 6: Final answer
x = 63,580.70
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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.