Finding the Fourth Proportional to 87,841.74, 121,221.98 and 47,555.50
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Solution
The fourth proportional to 87,841.74, 121,221.98 and 47,555.50 is: 65,626.80
Step by Step Solution
- Step 1: Write the proportion equation
87,841.74 : 121,221.98 = 47,555.50 : x - Step 2: Convert to fraction form
87,841.74/121,221.98 = 47,555.50/x - Step 3: Cross multiply
87,841.74x = 121,221.98 × 47,555.50 - Step 4: Simplify right side
87,841.74x = 5,764,771,869.89 - Step 5: Solve for x
x = 5,764,771,869.89/87,841.74 - Step 6: Final answer
x = 65,626.80
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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.