Finding the Fourth Proportional to 87,733.29, 121,071.59 and 47,447.09
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Solution
The fourth proportional to 87,733.29, 121,071.59 and 47,447.09 is: 65,476.80
Step by Step Solution
- Step 1: Write the proportion equation
87,733.29 : 121,071.59 = 47,447.09 : x - Step 2: Convert to fraction form
87,733.29/121,071.59 = 47,447.09/x - Step 3: Cross multiply
87,733.29x = 121,071.59 × 47,447.09 - Step 4: Simplify right side
87,733.29x = 5,744,494,389.94 - Step 5: Solve for x
x = 5,744,494,389.94/87,733.29 - Step 6: Final answer
x = 65,476.80
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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.