Finding the Fourth Proportional to 85,629.96, 118,166.42 and 47,391.12
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Solution
The fourth proportional to 85,629.96, 118,166.42 and 47,391.12 is: 65,398.12
Step by Step Solution
- Step 1: Write the proportion equation
85,629.96 : 118,166.42 = 47,391.12 : x - Step 2: Convert to fraction form
85,629.96/118,166.42 = 47,391.12/x - Step 3: Cross multiply
85,629.96x = 118,166.42 × 47,391.12 - Step 4: Simplify right side
85,629.96x = 5,600,038,753.23 - Step 5: Solve for x
x = 5,600,038,753.23/85,629.96 - Step 6: Final answer
x = 65,398.12
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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.