Finding the Fourth Proportional to 85,609.28, 128,430.12 and 33,024.08
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Solution
The fourth proportional to 85,609.28, 128,430.12 and 33,024.08 is: 49,542.37
Step by Step Solution
- Step 1: Write the proportion equation
85,609.28 : 128,430.12 = 33,024.08 : x - Step 2: Convert to fraction form
85,609.28/128,430.12 = 33,024.08/x - Step 3: Cross multiply
85,609.28x = 128,430.12 × 33,024.08 - Step 4: Simplify right side
85,609.28x = 4,241,286,557.29 - Step 5: Solve for x
x = 4,241,286,557.29/85,609.28 - Step 6: Final answer
x = 49,542.37
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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.