Finding the Fourth Proportional to 68,775.12, 103,164.08 and 22,027.84
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Solution
The fourth proportional to 68,775.12, 103,164.08 and 22,027.84 is: 33,042.21
Step by Step Solution
- Step 1: Write the proportion equation
68,775.12 : 103,164.08 = 22,027.84 : x - Step 2: Convert to fraction form
68,775.12/103,164.08 = 22,027.84/x - Step 3: Cross multiply
68,775.12x = 103,164.08 × 22,027.84 - Step 4: Simplify right side
68,775.12x = 2,272,481,847.99 - Step 5: Solve for x
x = 2,272,481,847.99/68,775.12 - Step 6: Final answer
x = 33,042.21
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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.