Finding the Fourth Proportional to 87,762.09, 131,562.37 and 47,722.58
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Solution
The fourth proportional to 87,762.09, 131,562.37 and 47,722.58 is: 71,539.95
Step by Step Solution
- Step 1: Write the proportion equation
87,762.09 : 131,562.37 = 47,722.58 : x - Step 2: Convert to fraction form
87,762.09/131,562.37 = 47,722.58/x - Step 3: Cross multiply
87,762.09x = 131,562.37 × 47,722.58 - Step 4: Simplify right side
87,762.09x = 6,278,495,727.31 - Step 5: Solve for x
x = 6,278,495,727.31/87,762.09 - Step 6: Final answer
x = 71,539.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.