Finding the Fourth Proportional to 81,380.88, 122,110.20 and 51,832.08
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Solution
The fourth proportional to 81,380.88, 122,110.20 and 51,832.08 is: 77,772.88
Step by Step Solution
- Step 1: Write the proportion equation
81,380.88 : 122,110.20 = 51,832.08 : x - Step 2: Convert to fraction form
81,380.88/122,110.20 = 51,832.08/x - Step 3: Cross multiply
81,380.88x = 122,110.20 × 51,832.08 - Step 4: Simplify right side
81,380.88x = 6,329,225,655.22 - Step 5: Solve for x
x = 6,329,225,655.22/81,380.88 - Step 6: Final answer
x = 77,772.88
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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.