Finding the Fourth Proportional to 76,128.99, 114,201.17 and 26,202.53
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Solution
The fourth proportional to 76,128.99, 114,201.17 and 26,202.53 is: 39,306.43
Step by Step Solution
- Step 1: Write the proportion equation
76,128.99 : 114,201.17 = 26,202.53 : x - Step 2: Convert to fraction form
76,128.99/114,201.17 = 26,202.53/x - Step 3: Cross multiply
76,128.99x = 114,201.17 × 26,202.53 - Step 4: Simplify right side
76,128.99x = 2,992,358,880.94 - Step 5: Solve for x
x = 2,992,358,880.94/76,128.99 - Step 6: Final answer
x = 39,306.43
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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.