Finding the Fourth Proportional to 74,874.54, 112,311.36 and 18,714.36
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Solution
The fourth proportional to 74,874.54, 112,311.36 and 18,714.36 is: 28,071.43
Step by Step Solution
- Step 1: Write the proportion equation
74,874.54 : 112,311.36 = 18,714.36 : x - Step 2: Convert to fraction form
74,874.54/112,311.36 = 18,714.36/x - Step 3: Cross multiply
74,874.54x = 112,311.36 × 18,714.36 - Step 4: Simplify right side
74,874.54x = 2,101,835,223.13 - Step 5: Solve for x
x = 2,101,835,223.13/74,874.54 - Step 6: Final answer
x = 28,071.43
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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.