Finding the Fourth Proportional to 75,499.12, 104,203.86 and 57,562.06
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Solution
The fourth proportional to 75,499.12, 104,203.86 and 57,562.06 is: 79,447.14
Step by Step Solution
- Step 1: Write the proportion equation
75,499.12 : 104,203.86 = 57,562.06 : x - Step 2: Convert to fraction form
75,499.12/104,203.86 = 57,562.06/x - Step 3: Cross multiply
75,499.12x = 104,203.86 × 57,562.06 - Step 4: Simplify right side
75,499.12x = 5,998,188,841.55 - Step 5: Solve for x
x = 5,998,188,841.55/75,499.12 - Step 6: Final answer
x = 79,447.14
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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.