Finding the Fourth Proportional to 91,264.38, 125,944.92 and 50,978.09
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Solution
The fourth proportional to 91,264.38, 125,944.92 and 50,978.09 is: 70,349.80
Step by Step Solution
- Step 1: Write the proportion equation
91,264.38 : 125,944.92 = 50,978.09 : x - Step 2: Convert to fraction form
91,264.38/125,944.92 = 50,978.09/x - Step 3: Cross multiply
91,264.38x = 125,944.92 × 50,978.09 - Step 4: Simplify right side
91,264.38x = 6,420,430,837.08 - Step 5: Solve for x
x = 6,420,430,837.08/91,264.38 - Step 6: Final answer
x = 70,349.80
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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.