Finding the Fourth Proportional to 87,861.39, 121,248.93 and 47,575.63
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Solution
The fourth proportional to 87,861.39, 121,248.93 and 47,575.63 is: 65,654.48
Step by Step Solution
- Step 1: Write the proportion equation
87,861.39 : 121,248.93 = 47,575.63 : x - Step 2: Convert to fraction form
87,861.39/121,248.93 = 47,575.63/x - Step 3: Cross multiply
87,861.39x = 121,248.93 × 47,575.63 - Step 4: Simplify right side
87,861.39x = 5,768,494,231.58 - Step 5: Solve for x
x = 5,768,494,231.58/87,861.39 - Step 6: Final answer
x = 65,654.48
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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.