Finding the Fourth Proportional to 74,931.90, 112,324.77 and 29,939.84
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Solution
The fourth proportional to 74,931.90, 112,324.77 and 29,939.84 is: 44,880.55
Step by Step Solution
- Step 1: Write the proportion equation
74,931.90 : 112,324.77 = 29,939.84 : x - Step 2: Convert to fraction form
74,931.90/112,324.77 = 29,939.84/x - Step 3: Cross multiply
74,931.90x = 112,324.77 × 29,939.84 - Step 4: Simplify right side
74,931.90x = 3,362,985,080.21 - Step 5: Solve for x
x = 3,362,985,080.21/74,931.90 - Step 6: Final answer
x = 44,880.55
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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.