Finding the Fourth Proportional to 76,785.99, 115,108.82 and 65,015.60
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Solution
The fourth proportional to 76,785.99, 115,108.82 and 65,015.60 is: 97,463.99
Step by Step Solution
- Step 1: Write the proportion equation
76,785.99 : 115,108.82 = 65,015.60 : x - Step 2: Convert to fraction form
76,785.99/115,108.82 = 65,015.60/x - Step 3: Cross multiply
76,785.99x = 115,108.82 × 65,015.60 - Step 4: Simplify right side
76,785.99x = 7,483,869,494.87 - Step 5: Solve for x
x = 7,483,869,494.87/76,785.99 - Step 6: Final answer
x = 97,463.99
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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.