Finding the Fourth Proportional to 84,614.08, 126,831.80 and 28,400.88
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Solution
The fourth proportional to 84,614.08, 126,831.80 and 28,400.88 is: 42,571.34
Step by Step Solution
- Step 1: Write the proportion equation
84,614.08 : 126,831.80 = 28,400.88 : x - Step 2: Convert to fraction form
84,614.08/126,831.80 = 28,400.88/x - Step 3: Cross multiply
84,614.08x = 126,831.80 × 28,400.88 - Step 4: Simplify right side
84,614.08x = 3,602,134,731.98 - Step 5: Solve for x
x = 3,602,134,731.98/84,614.08 - Step 6: Final answer
x = 42,571.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.