Finding the Fourth Proportional to 77,688.53, 116,538.67 and 21,527.99
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Solution
The fourth proportional to 77,688.53, 116,538.67 and 21,527.99 is: 32,293.62
Step by Step Solution
- Step 1: Write the proportion equation
77,688.53 : 116,538.67 = 21,527.99 : x - Step 2: Convert to fraction form
77,688.53/116,538.67 = 21,527.99/x - Step 3: Cross multiply
77,688.53x = 116,538.67 × 21,527.99 - Step 4: Simplify right side
77,688.53x = 2,508,843,919.69 - Step 5: Solve for x
x = 2,508,843,919.69/77,688.53 - Step 6: Final answer
x = 32,293.62
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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.