Finding the Fourth Proportional to 85,455.92, 117,933.68 and 51,475.08
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Solution
The fourth proportional to 85,455.92, 117,933.68 and 51,475.08 is: 71,038.33
Step by Step Solution
- Step 1: Write the proportion equation
85,455.92 : 117,933.68 = 51,475.08 : x - Step 2: Convert to fraction form
85,455.92/117,933.68 = 51,475.08/x - Step 3: Cross multiply
85,455.92x = 117,933.68 × 51,475.08 - Step 4: Simplify right side
85,455.92x = 6,070,645,612.69 - Step 5: Solve for x
x = 6,070,645,612.69/85,455.92 - Step 6: Final answer
x = 71,038.33
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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.