Finding the Fourth Proportional to 87,120.08, 120,181.40 and 56,923.08
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Solution
The fourth proportional to 87,120.08, 120,181.40 and 56,923.08 is: 78,524.90
Step by Step Solution
- Step 1: Write the proportion equation
87,120.08 : 120,181.40 = 56,923.08 : x - Step 2: Convert to fraction form
87,120.08/120,181.40 = 56,923.08/x - Step 3: Cross multiply
87,120.08x = 120,181.40 × 56,923.08 - Step 4: Simplify right side
87,120.08x = 6,841,095,446.71 - Step 5: Solve for x
x = 6,841,095,446.71/87,120.08 - Step 6: Final answer
x = 78,524.90
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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.