Finding the Fourth Proportional to 87,863.19, 121,251.04 and 47,577.08
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Solution
The fourth proportional to 87,863.19, 121,251.04 and 47,577.08 is: 65,656.27
Step by Step Solution
- Step 1: Write the proportion equation
87,863.19 : 121,251.04 = 47,577.08 : x - Step 2: Convert to fraction form
87,863.19/121,251.04 = 47,577.08/x - Step 3: Cross multiply
87,863.19x = 121,251.04 × 47,577.08 - Step 4: Simplify right side
87,863.19x = 5,768,769,704.97 - Step 5: Solve for x
x = 5,768,769,704.97/87,863.19 - Step 6: Final answer
x = 65,656.27
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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.