Finding the Fourth Proportional to 86,944.50, 119,983.41 and 49,218.75
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Solution
The fourth proportional to 86,944.50, 119,983.41 and 49,218.75 is: 67,921.88
Step by Step Solution
- Step 1: Write the proportion equation
86,944.50 : 119,983.41 = 49,218.75 : x - Step 2: Convert to fraction form
86,944.50/119,983.41 = 49,218.75/x - Step 3: Cross multiply
86,944.50x = 119,983.41 × 49,218.75 - Step 4: Simplify right side
86,944.50x = 5,905,433,460.94 - Step 5: Solve for x
x = 5,905,433,460.94/86,944.50 - Step 6: Final answer
x = 67,921.88
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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.