Finding the Fourth Proportional to 81,649.08, 122,454.99 and 22,489.92
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Solution
The fourth proportional to 81,649.08, 122,454.99 and 22,489.92 is: 33,729.75
Step by Step Solution
- Step 1: Write the proportion equation
81,649.08 : 122,454.99 = 22,489.92 : x - Step 2: Convert to fraction form
81,649.08/122,454.99 = 22,489.92/x - Step 3: Cross multiply
81,649.08x = 122,454.99 × 22,489.92 - Step 4: Simplify right side
81,649.08x = 2,754,002,928.70 - Step 5: Solve for x
x = 2,754,002,928.70/81,649.08 - Step 6: Final answer
x = 33,729.75
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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.