Finding the Fourth Proportional to 73,178.73, 100,906.47 and 47,637.99
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Solution
The fourth proportional to 73,178.73, 100,906.47 and 47,637.99 is: 65,688.23
Step by Step Solution
- Step 1: Write the proportion equation
73,178.73 : 100,906.47 = 47,637.99 : x - Step 2: Convert to fraction form
73,178.73/100,906.47 = 47,637.99/x - Step 3: Cross multiply
73,178.73x = 100,906.47 × 47,637.99 - Step 4: Simplify right side
73,178.73x = 4,806,981,050.09 - Step 5: Solve for x
x = 4,806,981,050.09/73,178.73 - Step 6: Final answer
x = 65,688.23
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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.