Finding the Fourth Proportional to 68,861.32, 103,070.53 and 35,535.99
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Solution
The fourth proportional to 68,861.32, 103,070.53 and 35,535.99 is: 53,189.71
Step by Step Solution
- Step 1: Write the proportion equation
68,861.32 : 103,070.53 = 35,535.99 : x - Step 2: Convert to fraction form
68,861.32/103,070.53 = 35,535.99/x - Step 3: Cross multiply
68,861.32x = 103,070.53 × 35,535.99 - Step 4: Simplify right side
68,861.32x = 3,662,713,754.31 - Step 5: Solve for x
x = 3,662,713,754.31/68,861.32 - Step 6: Final answer
x = 53,189.71
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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.