Finding the Fourth Proportional to 75,465.91, 104,143.46 and 47,188.15
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Solution
The fourth proportional to 75,465.91, 104,143.46 and 47,188.15 is: 65,119.96
Step by Step Solution
- Step 1: Write the proportion equation
75,465.91 : 104,143.46 = 47,188.15 : x - Step 2: Convert to fraction form
75,465.91/104,143.46 = 47,188.15/x - Step 3: Cross multiply
75,465.91x = 104,143.46 × 47,188.15 - Step 4: Simplify right side
75,465.91x = 4,914,337,212.00 - Step 5: Solve for x
x = 4,914,337,212.00/75,465.91 - Step 6: Final answer
x = 65,119.96
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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.