Finding the Fourth Proportional to 85,125.45, 117,416.87 and 53,238.99
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Solution
The fourth proportional to 85,125.45, 117,416.87 and 53,238.99 is: 73,434.62
Step by Step Solution
- Step 1: Write the proportion equation
85,125.45 : 117,416.87 = 53,238.99 : x - Step 2: Convert to fraction form
85,125.45/117,416.87 = 53,238.99/x - Step 3: Cross multiply
85,125.45x = 117,416.87 × 53,238.99 - Step 4: Simplify right side
85,125.45x = 6,251,155,301.57 - Step 5: Solve for x
x = 6,251,155,301.57/85,125.45 - Step 6: Final answer
x = 73,434.62
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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.