Finding the Fourth Proportional to 87,730.29, 131,614.88 and 48,267.09
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Solution
The fourth proportional to 87,730.29, 131,614.88 and 48,267.09 is: 72,411.33
Step by Step Solution
- Step 1: Write the proportion equation
87,730.29 : 131,614.88 = 48,267.09 : x - Step 2: Convert to fraction form
87,730.29/131,614.88 = 48,267.09/x - Step 3: Cross multiply
87,730.29x = 131,614.88 × 48,267.09 - Step 4: Simplify right side
87,730.29x = 6,352,667,016.96 - Step 5: Solve for x
x = 6,352,667,016.96/87,730.29 - Step 6: Final answer
x = 72,411.33
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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.