Finding the Fourth Proportional to 68,128.44, 102,186.18 and 21,373.08
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Solution
The fourth proportional to 68,128.44, 102,186.18 and 21,373.08 is: 32,057.59
Step by Step Solution
- Step 1: Write the proportion equation
68,128.44 : 102,186.18 = 21,373.08 : x - Step 2: Convert to fraction form
68,128.44/102,186.18 = 21,373.08/x - Step 3: Cross multiply
68,128.44x = 102,186.18 × 21,373.08 - Step 4: Simplify right side
68,128.44x = 2,184,033,400.03 - Step 5: Solve for x
x = 2,184,033,400.03/68,128.44 - Step 6: Final answer
x = 32,057.59
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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.