Finding the Fourth Proportional to 84,643.26, 116,803.20 and 48,831.14
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Solution
The fourth proportional to 84,643.26, 116,803.20 and 48,831.14 is: 67,384.38
Step by Step Solution
- Step 1: Write the proportion equation
84,643.26 : 116,803.20 = 48,831.14 : x - Step 2: Convert to fraction form
84,643.26/116,803.20 = 48,831.14/x - Step 3: Cross multiply
84,643.26x = 116,803.20 × 48,831.14 - Step 4: Simplify right side
84,643.26x = 5,703,633,411.65 - Step 5: Solve for x
x = 5,703,633,411.65/84,643.26 - Step 6: Final answer
x = 67,384.38
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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.