Finding the Fourth Proportional to 72,241.16, 108,367.16 and 19,651.08
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Solution
The fourth proportional to 72,241.16, 108,367.16 and 19,651.08 is: 29,478.09
Step by Step Solution
- Step 1: Write the proportion equation
72,241.16 : 108,367.16 = 19,651.08 : x - Step 2: Convert to fraction form
72,241.16/108,367.16 = 19,651.08/x - Step 3: Cross multiply
72,241.16x = 108,367.16 × 19,651.08 - Step 4: Simplify right side
72,241.16x = 2,129,531,730.53 - Step 5: Solve for x
x = 2,129,531,730.53/72,241.16 - 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.