Finding the Fourth Proportional to 80,497.26, 111,047.63 and 56,637.09
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Solution
The fourth proportional to 80,497.26, 111,047.63 and 56,637.09 is: 78,132.03
Step by Step Solution
- Step 1: Write the proportion equation
80,497.26 : 111,047.63 = 56,637.09 : x - Step 2: Convert to fraction form
80,497.26/111,047.63 = 56,637.09/x - Step 3: Cross multiply
80,497.26x = 111,047.63 × 56,637.09 - Step 4: Simplify right side
80,497.26x = 6,289,414,331.41 - Step 5: Solve for x
x = 6,289,414,331.41/80,497.26 - Step 6: Final answer
x = 78,132.03
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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.