Finding the Fourth Proportional to 81,616.68, 122,187.24 and 60,649.68
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Solution
The fourth proportional to 81,616.68, 122,187.24 and 60,649.68 is: 90,797.82
Step by Step Solution
- Step 1: Write the proportion equation
81,616.68 : 122,187.24 = 60,649.68 : x - Step 2: Convert to fraction form
81,616.68/122,187.24 = 60,649.68/x - Step 3: Cross multiply
81,616.68x = 122,187.24 × 60,649.68 - Step 4: Simplify right side
81,616.68x = 7,410,617,006.08 - Step 5: Solve for x
x = 7,410,617,006.08/81,616.68 - Step 6: Final answer
x = 90,797.82
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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.