Finding the Fourth Proportional to 85,854.94, 118,479.81 and 48,129.19
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Solution
The fourth proportional to 85,854.94, 118,479.81 and 48,129.19 is: 66,418.28
Step by Step Solution
- Step 1: Write the proportion equation
85,854.94 : 118,479.81 = 48,129.19 : x - Step 2: Convert to fraction form
85,854.94/118,479.81 = 48,129.19/x - Step 3: Cross multiply
85,854.94x = 118,479.81 × 48,129.19 - Step 4: Simplify right side
85,854.94x = 5,702,337,170.94 - Step 5: Solve for x
x = 5,702,337,170.94/85,854.94 - Step 6: Final answer
x = 66,418.28
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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.