Finding the Fourth Proportional to 73,123.46, 109,684.68 and 20,532.99
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Solution
The fourth proportional to 73,123.46, 109,684.68 and 20,532.99 is: 30,799.34
Step by Step Solution
- Step 1: Write the proportion equation
73,123.46 : 109,684.68 = 20,532.99 : x - Step 2: Convert to fraction form
73,123.46/109,684.68 = 20,532.99/x - Step 3: Cross multiply
73,123.46x = 109,684.68 × 20,532.99 - Step 4: Simplify right side
73,123.46x = 2,252,154,437.59 - Step 5: Solve for x
x = 2,252,154,437.59/73,123.46 - Step 6: Final answer
x = 30,799.34
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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.