Finding the Fourth Proportional to 83,850.66, 115,716.51 and 45,612.99
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Solution
The fourth proportional to 83,850.66, 115,716.51 and 45,612.99 is: 62,947.34
Step by Step Solution
- Step 1: Write the proportion equation
83,850.66 : 115,716.51 = 45,612.99 : x - Step 2: Convert to fraction form
83,850.66/115,716.51 = 45,612.99/x - Step 3: Cross multiply
83,850.66x = 115,716.51 × 45,612.99 - Step 4: Simplify right side
83,850.66x = 5,278,176,013.46 - Step 5: Solve for x
x = 5,278,176,013.46/83,850.66 - Step 6: Final answer
x = 62,947.34
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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.