Finding the Fourth Proportional to 71,205.30, 106,798.68 and 18,618.84
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Solution
The fourth proportional to 71,205.30, 106,798.68 and 18,618.84 is: 27,925.84
Step by Step Solution
- Step 1: Write the proportion equation
71,205.30 : 106,798.68 = 18,618.84 : x - Step 2: Convert to fraction form
71,205.30/106,798.68 = 18,618.84/x - Step 3: Cross multiply
71,205.30x = 106,798.68 × 18,618.84 - Step 4: Simplify right side
71,205.30x = 1,988,467,535.13 - Step 5: Solve for x
x = 1,988,467,535.13/71,205.30 - Step 6: Final answer
x = 27,925.84
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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.