Finding the Fourth Proportional to 77,113.03, 115,669.26 and 27,181.09
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Solution
The fourth proportional to 77,113.03, 115,669.26 and 27,181.09 is: 40,771.53
Step by Step Solution
- Step 1: Write the proportion equation
77,113.03 : 115,669.26 = 27,181.09 : x - Step 2: Convert to fraction form
77,113.03/115,669.26 = 27,181.09/x - Step 3: Cross multiply
77,113.03x = 115,669.26 × 27,181.09 - Step 4: Simplify right side
77,113.03x = 3,144,016,566.29 - Step 5: Solve for x
x = 3,144,016,566.29/77,113.03 - Step 6: Final answer
x = 40,771.53
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1.5x scale
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.