Finding the Fourth Proportional to 91,207.75, 125,866.70 and 51,463.75
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Solution
The fourth proportional to 91,207.75, 125,866.70 and 51,463.75 is: 71,019.98
Step by Step Solution
- Step 1: Write the proportion equation
91,207.75 : 125,866.70 = 51,463.75 : x - Step 2: Convert to fraction form
91,207.75/125,866.70 = 51,463.75/x - Step 3: Cross multiply
91,207.75x = 125,866.70 × 51,463.75 - Step 4: Simplify right side
91,207.75x = 6,477,572,382.13 - Step 5: Solve for x
x = 6,477,572,382.13/91,207.75 - Step 6: Final answer
x = 71,019.98
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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.