Finding the Fourth Proportional to 81,403.18, 122,122.23 and 25,242.08
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Solution
The fourth proportional to 81,403.18, 122,122.23 and 25,242.08 is: 37,868.54
Step by Step Solution
- Step 1: Write the proportion equation
81,403.18 : 122,122.23 = 25,242.08 : x - Step 2: Convert to fraction form
81,403.18/122,122.23 = 25,242.08/x - Step 3: Cross multiply
81,403.18x = 122,122.23 × 25,242.08 - Step 4: Simplify right side
81,403.18x = 3,082,619,223.09 - Step 5: Solve for x
x = 3,082,619,223.09/81,403.18 - Step 6: Final answer
x = 37,868.54
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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.