Finding the Fourth Proportional to 85,243.56, 117,634.50 and 53,430.12
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Solution
The fourth proportional to 85,243.56, 117,634.50 and 53,430.12 is: 73,732.55
Step by Step Solution
- Step 1: Write the proportion equation
85,243.56 : 117,634.50 = 53,430.12 : x - Step 2: Convert to fraction form
85,243.56/117,634.50 = 53,430.12/x - Step 3: Cross multiply
85,243.56x = 117,634.50 × 53,430.12 - Step 4: Simplify right side
85,243.56x = 6,285,225,451.14 - Step 5: Solve for x
x = 6,285,225,451.14/85,243.56 - Step 6: Final answer
x = 73,732.55
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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.