Finding the Fourth Proportional to 89,125.29, 122,990.94 and 48,838.19
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Solution
The fourth proportional to 89,125.29, 122,990.94 and 48,838.19 is: 67,395.62
Step by Step Solution
- Step 1: Write the proportion equation
89,125.29 : 122,990.94 = 48,838.19 : x - Step 2: Convert to fraction form
89,125.29/122,990.94 = 48,838.19/x - Step 3: Cross multiply
89,125.29x = 122,990.94 × 48,838.19 - Step 4: Simplify right side
89,125.29x = 6,006,654,281.04 - Step 5: Solve for x
x = 6,006,654,281.04/89,125.29 - Step 6: Final answer
x = 67,395.62
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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.