Finding the Fourth Proportional to 76,891.14, 115,281.35 and 47,247.73
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Solution
The fourth proportional to 76,891.14, 115,281.35 and 47,247.73 is: 70,837.57
Step by Step Solution
- Step 1: Write the proportion equation
76,891.14 : 115,281.35 = 47,247.73 : x - Step 2: Convert to fraction form
76,891.14/115,281.35 = 47,247.73/x - Step 3: Cross multiply
76,891.14x = 115,281.35 × 47,247.73 - Step 4: Simplify right side
76,891.14x = 5,446,781,286.19 - Step 5: Solve for x
x = 5,446,781,286.19/76,891.14 - Step 6: Final answer
x = 70,837.57
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1.5x scale
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.