Finding the Fourth Proportional to 87,276.88, 130,972.73 and 47,861.67
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Solution
The fourth proportional to 87,276.88, 130,972.73 and 47,861.67 is: 71,823.99
Step by Step Solution
- Step 1: Write the proportion equation
87,276.88 : 130,972.73 = 47,861.67 : x - Step 2: Convert to fraction form
87,276.88/130,972.73 = 47,861.67/x - Step 3: Cross multiply
87,276.88x = 130,972.73 × 47,861.67 - Step 4: Simplify right side
87,276.88x = 6,268,573,582.26 - Step 5: Solve for x
x = 6,268,573,582.26/87,276.88 - Step 6: Final answer
x = 71,823.99
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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.