Finding the Fourth Proportional to 68,162.22, 102,259.74 and 21,415.08
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Solution
The fourth proportional to 68,162.22, 102,259.74 and 21,415.08 is: 32,127.78
Step by Step Solution
- Step 1: Write the proportion equation
68,162.22 : 102,259.74 = 21,415.08 : x - Step 2: Convert to fraction form
68,162.22/102,259.74 = 21,415.08/x - Step 3: Cross multiply
68,162.22x = 102,259.74 × 21,415.08 - Step 4: Simplify right side
68,162.22x = 2,189,900,512.88 - Step 5: Solve for x
x = 2,189,900,512.88/68,162.22 - Step 6: Final answer
x = 32,127.78
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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.