Finding the Fourth Proportional to 76,804.60, 115,279.80 and 65,723.80
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Solution
The fourth proportional to 76,804.60, 115,279.80 and 65,723.80 is: 98,648.08
Step by Step Solution
- Step 1: Write the proportion equation
76,804.60 : 115,279.80 = 65,723.80 : x - Step 2: Convert to fraction form
76,804.60/115,279.80 = 65,723.80/x - Step 3: Cross multiply
76,804.60x = 115,279.80 × 65,723.80 - Step 4: Simplify right side
76,804.60x = 7,576,626,519.24 - Step 5: Solve for x
x = 7,576,626,519.24/76,804.60 - Step 6: Final answer
x = 98,648.08
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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.