Finding the Fourth Proportional to 91,855.80, 126,751.21 and 51,573.99
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Solution
The fourth proportional to 91,855.80, 126,751.21 and 51,573.99 is: 71,166.61
Step by Step Solution
- Step 1: Write the proportion equation
91,855.80 : 126,751.21 = 51,573.99 : x - Step 2: Convert to fraction form
91,855.80/126,751.21 = 51,573.99/x - Step 3: Cross multiply
91,855.80x = 126,751.21 × 51,573.99 - Step 4: Simplify right side
91,855.80x = 6,537,065,637.03 - Step 5: Solve for x
x = 6,537,065,637.03/91,855.80 - Step 6: Final answer
x = 71,166.61
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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.