Finding the Fourth Proportional to 89,028.57, 122,859.79 and 48,746.09
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Solution
The fourth proportional to 89,028.57, 122,859.79 and 48,746.09 is: 67,269.79
Step by Step Solution
- Step 1: Write the proportion equation
89,028.57 : 122,859.79 = 48,746.09 : x - Step 2: Convert to fraction form
89,028.57/122,859.79 = 48,746.09/x - Step 3: Cross multiply
89,028.57x = 122,859.79 × 48,746.09 - Step 4: Simplify right side
89,028.57x = 5,988,933,644.56 - Step 5: Solve for x
x = 5,988,933,644.56/89,028.57 - Step 6: Final answer
x = 67,269.79
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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.