Finding the Fourth Proportional to 74,868.64, 112,325.98 and 44,916.12
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Solution
The fourth proportional to 74,868.64, 112,325.98 and 44,916.12 is: 67,387.99
Step by Step Solution
- Step 1: Write the proportion equation
74,868.64 : 112,325.98 = 44,916.12 : x - Step 2: Convert to fraction form
74,868.64/112,325.98 = 44,916.12/x - Step 3: Cross multiply
74,868.64x = 112,325.98 × 44,916.12 - Step 4: Simplify right side
74,868.64x = 5,045,247,196.80 - Step 5: Solve for x
x = 5,045,247,196.80/74,868.64 - Step 6: Final answer
x = 67,387.99
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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.