Finding the Fourth Proportional to 87,288.64, 130,990.36 and 47,873.42
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Solution
The fourth proportional to 87,288.64, 130,990.36 and 47,873.42 is: 71,841.61
Step by Step Solution
- Step 1: Write the proportion equation
87,288.64 : 130,990.36 = 47,873.42 : x - Step 2: Convert to fraction form
87,288.64/130,990.36 = 47,873.42/x - Step 3: Cross multiply
87,288.64x = 130,990.36 × 47,873.42 - Step 4: Simplify right side
87,288.64x = 6,270,956,520.23 - Step 5: Solve for x
x = 6,270,956,520.23/87,288.64 - Step 6: Final answer
x = 71,841.61
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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.