Finding the Fourth Proportional to 87,813.10, 121,181.94 and 47,526.84
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Solution
The fourth proportional to 87,813.10, 121,181.94 and 47,526.84 is: 65,586.96
Step by Step Solution
- Step 1: Write the proportion equation
87,813.10 : 121,181.94 = 47,526.84 : x - Step 2: Convert to fraction form
87,813.10/121,181.94 = 47,526.84/x - Step 3: Cross multiply
87,813.10x = 121,181.94 × 47,526.84 - Step 4: Simplify right side
87,813.10x = 5,759,394,673.27 - Step 5: Solve for x
x = 5,759,394,673.27/87,813.10 - Step 6: Final answer
x = 65,586.96
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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.