Finding the Fourth Proportional to 75,564.18, 113,796.12 and 65,821.14
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Solution
The fourth proportional to 75,564.18, 113,796.12 and 65,821.14 is: 99,123.56
Step by Step Solution
- Step 1: Write the proportion equation
75,564.18 : 113,796.12 = 65,821.14 : x - Step 2: Convert to fraction form
75,564.18/113,796.12 = 65,821.14/x - Step 3: Cross multiply
75,564.18x = 113,796.12 × 65,821.14 - Step 4: Simplify right side
75,564.18x = 7,490,190,345.98 - Step 5: Solve for x
x = 7,490,190,345.98/75,564.18 - Step 6: Final answer
x = 99,123.56
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.