Finding the Fourth Proportional to 74,949.09, 112,390.70 and 39,880.41
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Solution
The fourth proportional to 74,949.09, 112,390.70 and 39,880.41 is: 59,803.09
Step by Step Solution
- Step 1: Write the proportion equation
74,949.09 : 112,390.70 = 39,880.41 : x - Step 2: Convert to fraction form
74,949.09/112,390.70 = 39,880.41/x - Step 3: Cross multiply
74,949.09x = 112,390.70 × 39,880.41 - Step 4: Simplify right side
74,949.09x = 4,482,186,996.78 - Step 5: Solve for x
x = 4,482,186,996.78/74,949.09 - Step 6: Final answer
x = 59,803.09
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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.