Finding the Fourth Proportional to 87,873.26, 121,265.69 and 47,587.05
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Solution
The fourth proportional to 87,873.26, 121,265.69 and 47,587.05 is: 65,670.45
Step by Step Solution
- Step 1: Write the proportion equation
87,873.26 : 121,265.69 = 47,587.05 : x - Step 2: Convert to fraction form
87,873.26/121,265.69 = 47,587.05/x - Step 3: Cross multiply
87,873.26x = 121,265.69 × 47,587.05 - Step 4: Simplify right side
87,873.26x = 5,770,676,215.38 - Step 5: Solve for x
x = 5,770,676,215.38/87,873.26 - Step 6: Final answer
x = 65,670.45
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1.5x scale
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.