Finding the Fourth Proportional to 76,007.04, 104,879.36 and 42,475.20
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Solution
The fourth proportional to 76,007.04, 104,879.36 and 42,475.20 is: 58,609.99
Step by Step Solution
- Step 1: Write the proportion equation
76,007.04 : 104,879.36 = 42,475.20 : x - Step 2: Convert to fraction form
76,007.04/104,879.36 = 42,475.20/x - Step 3: Cross multiply
76,007.04x = 104,879.36 × 42,475.20 - Step 4: Simplify right side
76,007.04x = 4,454,771,791.87 - Step 5: Solve for x
x = 4,454,771,791.87/76,007.04 - Step 6: Final answer
x = 58,609.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.