Finding the Fourth Proportional to 76,913.12, 106,149.82 and 44,640.84
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Solution
The fourth proportional to 76,913.12, 106,149.82 and 44,640.84 is: 61,610.00
Step by Step Solution
- Step 1: Write the proportion equation
76,913.12 : 106,149.82 = 44,640.84 : x - Step 2: Convert to fraction form
76,913.12/106,149.82 = 44,640.84/x - Step 3: Cross multiply
76,913.12x = 106,149.82 × 44,640.84 - Step 4: Simplify right side
76,913.12x = 4,738,617,130.65 - Step 5: Solve for x
x = 4,738,617,130.65/76,913.12 - Step 6: Final answer
x = 61,610.00
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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.