Finding the Fourth Proportional to 84,185.25, 126,312.50 and 61,810.18
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Solution
The fourth proportional to 84,185.25, 126,312.50 and 61,810.18 is: 92,740.69
Step by Step Solution
- Step 1: Write the proportion equation
84,185.25 : 126,312.50 = 61,810.18 : x - Step 2: Convert to fraction form
84,185.25/126,312.50 = 61,810.18/x - Step 3: Cross multiply
84,185.25x = 126,312.50 × 61,810.18 - Step 4: Simplify right side
84,185.25x = 7,807,398,361.25 - Step 5: Solve for x
x = 7,807,398,361.25/84,185.25 - Step 6: Final answer
x = 92,740.69
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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.