Finding the Fourth Proportional to 80,621.05, 120,931.86 and 24,461.65
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Solution
The fourth proportional to 80,621.05, 120,931.86 and 24,461.65 is: 36,692.56
Step by Step Solution
- Step 1: Write the proportion equation
80,621.05 : 120,931.86 = 24,461.65 : x - Step 2: Convert to fraction form
80,621.05/120,931.86 = 24,461.65/x - Step 3: Cross multiply
80,621.05x = 120,931.86 × 24,461.65 - Step 4: Simplify right side
80,621.05x = 2,958,192,833.17 - Step 5: Solve for x
x = 2,958,192,833.17/80,621.05 - Step 6: Final answer
x = 36,692.56
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1.5x scale
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.