Finding the Fourth Proportional to 72,817.34, 100,482.77 and 40,550.99
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Solution
The fourth proportional to 72,817.34, 100,482.77 and 40,550.99 is: 55,957.49
Step by Step Solution
- Step 1: Write the proportion equation
72,817.34 : 100,482.77 = 40,550.99 : x - Step 2: Convert to fraction form
72,817.34/100,482.77 = 40,550.99/x - Step 3: Cross multiply
72,817.34x = 100,482.77 × 40,550.99 - Step 4: Simplify right side
72,817.34x = 4,074,675,096.27 - Step 5: Solve for x
x = 4,074,675,096.27/72,817.34 - Step 6: Final answer
x = 55,957.49
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Double scale
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1.5x scale
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.