Finding the Fourth Proportional to 81,992.09, 113,149.70 and 46,178.75
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Solution
The fourth proportional to 81,992.09, 113,149.70 and 46,178.75 is: 63,727.02
Step by Step Solution
- Step 1: Write the proportion equation
81,992.09 : 113,149.70 = 46,178.75 : x - Step 2: Convert to fraction form
81,992.09/113,149.70 = 46,178.75/x - Step 3: Cross multiply
81,992.09x = 113,149.70 × 46,178.75 - Step 4: Simplify right side
81,992.09x = 5,225,110,912.23 - Step 5: Solve for x
x = 5,225,110,912.23/81,992.09 - Step 6: Final answer
x = 63,727.02
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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.