Finding the Fourth Proportional to 83,843.42, 115,726.66 and 49,418.21
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Solution
The fourth proportional to 83,843.42, 115,726.66 and 49,418.21 is: 68,210.54
Step by Step Solution
- Step 1: Write the proportion equation
83,843.42 : 115,726.66 = 49,418.21 : x - Step 2: Convert to fraction form
83,843.42/115,726.66 = 49,418.21/x - Step 3: Cross multiply
83,843.42x = 115,726.66 × 49,418.21 - Step 4: Simplify right side
83,843.42x = 5,719,004,552.25 - Step 5: Solve for x
x = 5,719,004,552.25/83,843.42 - Step 6: Final answer
x = 68,210.54
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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.