Finding the Fourth Proportional to 77,319.09, 115,745.22 and 69,927.03
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Solution
The fourth proportional to 77,319.09, 115,745.22 and 69,927.03 is: 104,679.45
Step by Step Solution
- Step 1: Write the proportion equation
77,319.09 : 115,745.22 = 69,927.03 : x - Step 2: Convert to fraction form
77,319.09/115,745.22 = 69,927.03/x - Step 3: Cross multiply
77,319.09x = 115,745.22 × 69,927.03 - Step 4: Simplify right side
77,319.09x = 8,093,719,471.30 - Step 5: Solve for x
x = 8,093,719,471.30/77,319.09 - Step 6: Final answer
x = 104,679.45
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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.