Finding the Fourth Proportional to 71,475.90, 107,217.69 and 18,883.95
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Solution
The fourth proportional to 71,475.90, 107,217.69 and 18,883.95 is: 28,326.94
Step by Step Solution
- Step 1: Write the proportion equation
71,475.90 : 107,217.69 = 18,883.95 : x - Step 2: Convert to fraction form
71,475.90/107,217.69 = 18,883.95/x - Step 3: Cross multiply
71,475.90x = 107,217.69 × 18,883.95 - Step 4: Simplify right side
71,475.90x = 2,024,693,497.08 - Step 5: Solve for x
x = 2,024,693,497.08/71,475.90 - Step 6: Final answer
x = 28,326.94
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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.