Finding the Fourth Proportional to 68,614.72, 102,921.84 and 45,070.96
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Solution
The fourth proportional to 68,614.72, 102,921.84 and 45,070.96 is: 67,606.28
Step by Step Solution
- Step 1: Write the proportion equation
68,614.72 : 102,921.84 = 45,070.96 : x - Step 2: Convert to fraction form
68,614.72/102,921.84 = 45,070.96/x - Step 3: Cross multiply
68,614.72x = 102,921.84 × 45,070.96 - Step 4: Simplify right side
68,614.72x = 4,638,786,133.77 - Step 5: Solve for x
x = 4,638,786,133.77/68,614.72 - Step 6: Final answer
x = 67,606.28
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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.