Finding the Fourth Proportional to 87,877.19, 121,269.88 and 47,590.01
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Solution
The fourth proportional to 87,877.19, 121,269.88 and 47,590.01 is: 65,673.87
Step by Step Solution
- Step 1: Write the proportion equation
87,877.19 : 121,269.88 = 47,590.01 : x - Step 2: Convert to fraction form
87,877.19/121,269.88 = 47,590.01/x - Step 3: Cross multiply
87,877.19x = 121,269.88 × 47,590.01 - Step 4: Simplify right side
87,877.19x = 5,771,235,124.25 - Step 5: Solve for x
x = 5,771,235,124.25/87,877.19 - Step 6: Final answer
x = 65,673.87
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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.