Finding the Fourth Proportional to 91,109.74, 125,692.68 and 57,095.08
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Solution
The fourth proportional to 91,109.74, 125,692.68 and 57,095.08 is: 78,766.92
Step by Step Solution
- Step 1: Write the proportion equation
91,109.74 : 125,692.68 = 57,095.08 : x - Step 2: Convert to fraction form
91,109.74/125,692.68 = 57,095.08/x - Step 3: Cross multiply
91,109.74x = 125,692.68 × 57,095.08 - Step 4: Simplify right side
91,109.74x = 7,176,433,620.01 - Step 5: Solve for x
x = 7,176,433,620.01/91,109.74 - Step 6: Final answer
x = 78,766.92
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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.