Finding the Fourth Proportional to 83,531.14, 115,272.99 and 45,806.18
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Solution
The fourth proportional to 83,531.14, 115,272.99 and 45,806.18 is: 63,212.54
Step by Step Solution
- Step 1: Write the proportion equation
83,531.14 : 115,272.99 = 45,806.18 : x - Step 2: Convert to fraction form
83,531.14/115,272.99 = 45,806.18/x - Step 3: Cross multiply
83,531.14x = 115,272.99 × 45,806.18 - Step 4: Simplify right side
83,531.14x = 5,280,215,329.08 - Step 5: Solve for x
x = 5,280,215,329.08/83,531.14 - Step 6: Final answer
x = 63,212.54
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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.