Finding the Fourth Proportional to 75,302.60, 112,877.10 and 44,121.80
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Solution
The fourth proportional to 75,302.60, 112,877.10 and 44,121.80 is: 66,137.70
Step by Step Solution
- Step 1: Write the proportion equation
75,302.60 : 112,877.10 = 44,121.80 : x - Step 2: Convert to fraction form
75,302.60/112,877.10 = 44,121.80/x - Step 3: Cross multiply
75,302.60x = 112,877.10 × 44,121.80 - Step 4: Simplify right side
75,302.60x = 4,980,340,830.78 - Step 5: Solve for x
x = 4,980,340,830.78/75,302.60 - Step 6: Final answer
x = 66,137.70
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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.