Finding the Fourth Proportional to 77,543.08, 107,014.74 and 43,091.92
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Solution
The fourth proportional to 77,543.08, 107,014.74 and 43,091.92 is: 59,469.79
Step by Step Solution
- Step 1: Write the proportion equation
77,543.08 : 107,014.74 = 43,091.92 : x - Step 2: Convert to fraction form
77,543.08/107,014.74 = 43,091.92/x - Step 3: Cross multiply
77,543.08x = 107,014.74 × 43,091.92 - Step 4: Simplify right side
77,543.08x = 4,611,470,614.90 - Step 5: Solve for x
x = 4,611,470,614.90/77,543.08 - Step 6: Final answer
x = 59,469.79
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1.5x scale
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.