Finding the Fourth Proportional to 76,701.60, 115,063.74 and 39,282.84
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Solution
The fourth proportional to 76,701.60, 115,063.74 and 39,282.84 is: 58,930.07
Step by Step Solution
- Step 1: Write the proportion equation
76,701.60 : 115,063.74 = 39,282.84 : x - Step 2: Convert to fraction form
76,701.60/115,063.74 = 39,282.84/x - Step 3: Cross multiply
76,701.60x = 115,063.74 × 39,282.84 - Step 4: Simplify right side
76,701.60x = 4,520,030,488.22 - Step 5: Solve for x
x = 4,520,030,488.22/76,701.60 - Step 6: Final answer
x = 58,930.07
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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.