Finding the Fourth Proportional to 85,660.83, 118,213.52 and 47,934.99
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Solution
The fourth proportional to 85,660.83, 118,213.52 and 47,934.99 is: 66,151.16
Step by Step Solution
- Step 1: Write the proportion equation
85,660.83 : 118,213.52 = 47,934.99 : x - Step 2: Convert to fraction form
85,660.83/118,213.52 = 47,934.99/x - Step 3: Cross multiply
85,660.83x = 118,213.52 × 47,934.99 - Step 4: Simplify right side
85,660.83x = 5,666,563,659.39 - Step 5: Solve for x
x = 5,666,563,659.39/85,660.83 - Step 6: Final answer
x = 66,151.16
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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.