Finding the Fourth Proportional to 80,924.27, 121,391.87 and 38,813.58
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Solution
The fourth proportional to 80,924.27, 121,391.87 and 38,813.58 is: 58,222.99
Step by Step Solution
- Step 1: Write the proportion equation
80,924.27 : 121,391.87 = 38,813.58 : x - Step 2: Convert to fraction form
80,924.27/121,391.87 = 38,813.58/x - Step 3: Cross multiply
80,924.27x = 121,391.87 × 38,813.58 - Step 4: Simplify right side
80,924.27x = 4,711,652,863.53 - Step 5: Solve for x
x = 4,711,652,863.53/80,924.27 - Step 6: Final answer
x = 58,222.99
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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.