Finding the Fourth Proportional to 83,434.97, 115,139.57 and 45,193.63
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Solution
The fourth proportional to 83,434.97, 115,139.57 and 45,193.63 is: 62,366.84
Step by Step Solution
- Step 1: Write the proportion equation
83,434.97 : 115,139.57 = 45,193.63 : x - Step 2: Convert to fraction form
83,434.97/115,139.57 = 45,193.63/x - Step 3: Cross multiply
83,434.97x = 115,139.57 × 45,193.63 - Step 4: Simplify right side
83,434.97x = 5,203,574,950.07 - Step 5: Solve for x
x = 5,203,574,950.07/83,434.97 - Step 6: Final answer
x = 62,366.84
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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.