Finding the Fourth Proportional to 77,838.21, 107,419.37 and 46,034.37
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Solution
The fourth proportional to 77,838.21, 107,419.37 and 46,034.37 is: 63,528.99
Step by Step Solution
- Step 1: Write the proportion equation
77,838.21 : 107,419.37 = 46,034.37 : x - Step 2: Convert to fraction form
77,838.21/107,419.37 = 46,034.37/x - Step 3: Cross multiply
77,838.21x = 107,419.37 × 46,034.37 - Step 4: Simplify right side
77,838.21x = 4,944,982,793.58 - Step 5: Solve for x
x = 4,944,982,793.58/77,838.21 - Step 6: Final answer
x = 63,528.99
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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.