Finding the Fourth Proportional to 85,679.42, 118,241.29 and 47,438.97
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Solution
The fourth proportional to 85,679.42, 118,241.29 and 47,438.97 is: 65,467.82
Step by Step Solution
- Step 1: Write the proportion equation
85,679.42 : 118,241.29 = 47,438.97 : x - Step 2: Convert to fraction form
85,679.42/118,241.29 = 47,438.97/x - Step 3: Cross multiply
85,679.42x = 118,241.29 × 47,438.97 - Step 4: Simplify right side
85,679.42x = 5,609,244,536.46 - Step 5: Solve for x
x = 5,609,244,536.46/85,679.42 - Step 6: Final answer
x = 65,467.82
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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.