Finding the Fourth Proportional to 68,202.62, 102,320.04 and 21,455.50
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Solution
The fourth proportional to 68,202.62, 102,320.04 and 21,455.50 is: 32,188.32
Step by Step Solution
- Step 1: Write the proportion equation
68,202.62 : 102,320.04 = 21,455.50 : x - Step 2: Convert to fraction form
68,202.62/102,320.04 = 21,455.50/x - Step 3: Cross multiply
68,202.62x = 102,320.04 × 21,455.50 - Step 4: Simplify right side
68,202.62x = 2,195,327,618.22 - Step 5: Solve for x
x = 2,195,327,618.22/68,202.62 - Step 6: Final answer
x = 32,188.32
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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.