Finding the Fourth Proportional to 76,794.80, 115,184.64 and 26,865.68
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Solution
The fourth proportional to 76,794.80, 115,184.64 and 26,865.68 is: 40,295.88
Step by Step Solution
- Step 1: Write the proportion equation
76,794.80 : 115,184.64 = 26,865.68 : x - Step 2: Convert to fraction form
76,794.80/115,184.64 = 26,865.68/x - Step 3: Cross multiply
76,794.80x = 115,184.64 × 26,865.68 - Step 4: Simplify right side
76,794.80x = 3,094,513,679.16 - Step 5: Solve for x
x = 3,094,513,679.16/76,794.80 - Step 6: Final answer
x = 40,295.88
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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.