Finding the Fourth Proportional to 79,325.15, 118,956.86 and 39,854.75
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Solution
The fourth proportional to 79,325.15, 118,956.86 and 39,854.75 is: 59,766.62
Step by Step Solution
- Step 1: Write the proportion equation
79,325.15 : 118,956.86 = 39,854.75 : x - Step 2: Convert to fraction form
79,325.15/118,956.86 = 39,854.75/x - Step 3: Cross multiply
79,325.15x = 118,956.86 × 39,854.75 - Step 4: Simplify right side
79,325.15x = 4,740,995,716.81 - Step 5: Solve for x
x = 4,740,995,716.81/79,325.15 - Step 6: Final answer
x = 59,766.62
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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.