Finding the Fourth Proportional to 72,241.08, 108,363.72 and 19,651.68
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Solution
The fourth proportional to 72,241.08, 108,363.72 and 19,651.68 is: 29,478.09
Step by Step Solution
- Step 1: Write the proportion equation
72,241.08 : 108,363.72 = 19,651.68 : x - Step 2: Convert to fraction form
72,241.08/108,363.72 = 19,651.68/x - Step 3: Cross multiply
72,241.08x = 108,363.72 × 19,651.68 - Step 4: Simplify right side
72,241.08x = 2,129,529,149.05 - Step 5: Solve for x
x = 2,129,529,149.05/72,241.08 - Step 6: Final answer
x = 29,478.09
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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.