Finding the Fourth Proportional to 84,842.02, 117,078.78 and 47,118.70
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Solution
The fourth proportional to 84,842.02, 117,078.78 and 47,118.70 is: 65,022.02
Step by Step Solution
- Step 1: Write the proportion equation
84,842.02 : 117,078.78 = 47,118.70 : x - Step 2: Convert to fraction form
84,842.02/117,078.78 = 47,118.70/x - Step 3: Cross multiply
84,842.02x = 117,078.78 × 47,118.70 - Step 4: Simplify right side
84,842.02x = 5,516,599,911.19 - Step 5: Solve for x
x = 5,516,599,911.19/84,842.02 - Step 6: Final answer
x = 65,022.02
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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.