Finding the Fourth Proportional to 68,435.40, 102,653.10 and 44,815.80
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Solution
The fourth proportional to 68,435.40, 102,653.10 and 44,815.80 is: 67,223.70
Step by Step Solution
- Step 1: Write the proportion equation
68,435.40 : 102,653.10 = 44,815.80 : x - Step 2: Convert to fraction form
68,435.40/102,653.10 = 44,815.80/x - Step 3: Cross multiply
68,435.40x = 102,653.10 × 44,815.80 - Step 4: Simplify right side
68,435.40x = 4,600,480,798.98 - Step 5: Solve for x
x = 4,600,480,798.98/68,435.40 - Step 6: Final answer
x = 67,223.70
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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.