Finding the Fourth Proportional to 76,111.13, 104,963.99 and 65,352.65
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Solution
The fourth proportional to 76,111.13, 104,963.99 and 65,352.65 is: 90,127.08
Step by Step Solution
- Step 1: Write the proportion equation
76,111.13 : 104,963.99 = 65,352.65 : x - Step 2: Convert to fraction form
76,111.13/104,963.99 = 65,352.65/x - Step 3: Cross multiply
76,111.13x = 104,963.99 × 65,352.65 - Step 4: Simplify right side
76,111.13x = 6,859,674,049.49 - Step 5: Solve for x
x = 6,859,674,049.49/76,111.13 - Step 6: Final answer
x = 90,127.08
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1.5x scale
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.