Finding the Fourth Proportional to 74,512.70, 102,819.74 and 42,682.94
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Solution
The fourth proportional to 74,512.70, 102,819.74 and 42,682.94 is: 58,898.00
Step by Step Solution
- Step 1: Write the proportion equation
74,512.70 : 102,819.74 = 42,682.94 : x - Step 2: Convert to fraction form
74,512.70/102,819.74 = 42,682.94/x - Step 3: Cross multiply
74,512.70x = 102,819.74 × 42,682.94 - Step 4: Simplify right side
74,512.70x = 4,388,648,793.24 - Step 5: Solve for x
x = 4,388,648,793.24/74,512.70 - Step 6: Final answer
x = 58,898.00
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.