Finding the Fourth Proportional to 68,955.18, 103,464.36 and 40,930.80
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Solution
The fourth proportional to 68,955.18, 103,464.36 and 40,930.80 is: 61,414.95
Step by Step Solution
- Step 1: Write the proportion equation
68,955.18 : 103,464.36 = 40,930.80 : x - Step 2: Convert to fraction form
68,955.18/103,464.36 = 40,930.80/x - Step 3: Cross multiply
68,955.18x = 103,464.36 × 40,930.80 - Step 4: Simplify right side
68,955.18x = 4,234,879,026.29 - Step 5: Solve for x
x = 4,234,879,026.29/68,955.18 - Step 6: Final answer
x = 61,414.95
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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.