Finding the Fourth Proportional to 85,202.55, 117,576.90 and 53,388.99
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Solution
The fourth proportional to 85,202.55, 117,576.90 and 53,388.99 is: 73,675.17
Step by Step Solution
- Step 1: Write the proportion equation
85,202.55 : 117,576.90 = 53,388.99 : x - Step 2: Convert to fraction form
85,202.55/117,576.90 = 53,388.99/x - Step 3: Cross multiply
85,202.55x = 117,576.90 × 53,388.99 - Step 4: Simplify right side
85,202.55x = 6,277,311,938.33 - Step 5: Solve for x
x = 6,277,311,938.33/85,202.55 - Step 6: Final answer
x = 73,675.17
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1.5x scale
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.