Finding the Fourth Proportional to 86,311.68, 119,041.92 and 56,497.92
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Solution
The fourth proportional to 86,311.68, 119,041.92 and 56,497.92 is: 77,922.49
Step by Step Solution
- Step 1: Write the proportion equation
86,311.68 : 119,041.92 = 56,497.92 : x - Step 2: Convert to fraction form
86,311.68/119,041.92 = 56,497.92/x - Step 3: Cross multiply
86,311.68x = 119,041.92 × 56,497.92 - Step 4: Simplify right side
86,311.68x = 6,725,620,872.81 - Step 5: Solve for x
x = 6,725,620,872.81/86,311.68 - Step 6: Final answer
x = 77,922.49
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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.