Finding the Fourth Proportional to 77,695.83, 107,217.14 and 43,704.99
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Solution
The fourth proportional to 77,695.83, 107,217.14 and 43,704.99 is: 60,311.14
Step by Step Solution
- Step 1: Write the proportion equation
77,695.83 : 107,217.14 = 43,704.99 : x - Step 2: Convert to fraction form
77,695.83/107,217.14 = 43,704.99/x - Step 3: Cross multiply
77,695.83x = 107,217.14 × 43,704.99 - Step 4: Simplify right side
77,695.83x = 4,685,923,813.00 - Step 5: Solve for x
x = 4,685,923,813.00/77,695.83 - Step 6: Final answer
x = 60,311.14
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.