Finding the Fourth Proportional to 81,315.62, 112,217.24 and 49,050.08
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Solution
The fourth proportional to 81,315.62, 112,217.24 and 49,050.08 is: 67,690.12
Step by Step Solution
- Step 1: Write the proportion equation
81,315.62 : 112,217.24 = 49,050.08 : x - Step 2: Convert to fraction form
81,315.62/112,217.24 = 49,050.08/x - Step 3: Cross multiply
81,315.62x = 112,217.24 × 49,050.08 - Step 4: Simplify right side
81,315.62x = 5,504,264,354.13 - Step 5: Solve for x
x = 5,504,264,354.13/81,315.62 - Step 6: Final answer
x = 67,690.12
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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.