Finding the Fourth Proportional to 83,662.84, 125,457.42 and 39,302.20
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Solution
The fourth proportional to 83,662.84, 125,457.42 and 39,302.20 is: 58,935.99
Step by Step Solution
- Step 1: Write the proportion equation
83,662.84 : 125,457.42 = 39,302.20 : x - Step 2: Convert to fraction form
83,662.84/125,457.42 = 39,302.20/x - Step 3: Cross multiply
83,662.84x = 125,457.42 × 39,302.20 - Step 4: Simplify right side
83,662.84x = 4,930,752,612.32 - Step 5: Solve for x
x = 4,930,752,612.32/83,662.84 - Step 6: Final answer
x = 58,935.99
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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.