Finding the Fourth Proportional to 83,609.08, 115,382.48 and 47,802.44
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Solution
The fourth proportional to 83,609.08, 115,382.48 and 47,802.44 is: 65,968.48
Step by Step Solution
- Step 1: Write the proportion equation
83,609.08 : 115,382.48 = 47,802.44 : x - Step 2: Convert to fraction form
83,609.08/115,382.48 = 47,802.44/x - Step 3: Cross multiply
83,609.08x = 115,382.48 × 47,802.44 - Step 4: Simplify right side
83,609.08x = 5,515,564,077.25 - Step 5: Solve for x
x = 5,515,564,077.25/83,609.08 - Step 6: Final answer
x = 65,968.48
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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.