Finding the Fourth Proportional to 72,351.21, 108,351.84 and 62,553.45
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Solution
The fourth proportional to 72,351.21, 108,351.84 and 62,553.45 is: 93,678.90
Step by Step Solution
- Step 1: Write the proportion equation
72,351.21 : 108,351.84 = 62,553.45 : x - Step 2: Convert to fraction form
72,351.21/108,351.84 = 62,553.45/x - Step 3: Cross multiply
72,351.21x = 108,351.84 × 62,553.45 - Step 4: Simplify right side
72,351.21x = 6,777,781,405.85 - Step 5: Solve for x
x = 6,777,781,405.85/72,351.21 - Step 6: Final answer
x = 93,678.90
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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.