Finding the Fourth Proportional to 73,394.96, 101,285.64 and 39,861.20
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Solution
The fourth proportional to 73,394.96, 101,285.64 and 39,861.20 is: 55,008.78
Step by Step Solution
- Step 1: Write the proportion equation
73,394.96 : 101,285.64 = 39,861.20 : x - Step 2: Convert to fraction form
73,394.96/101,285.64 = 39,861.20/x - Step 3: Cross multiply
73,394.96x = 101,285.64 × 39,861.20 - Step 4: Simplify right side
73,394.96x = 4,037,367,153.17 - Step 5: Solve for x
x = 4,037,367,153.17/73,394.96 - Step 6: Final answer
x = 55,008.78
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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.