Finding the Fourth Proportional to 68,502.97, 102,812.77 and 26,979.13
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Solution
The fourth proportional to 68,502.97, 102,812.77 and 26,979.13 is: 40,491.66
Step by Step Solution
- Step 1: Write the proportion equation
68,502.97 : 102,812.77 = 26,979.13 : x - Step 2: Convert to fraction form
68,502.97/102,812.77 = 26,979.13/x - Step 3: Cross multiply
68,502.97x = 102,812.77 × 26,979.13 - Step 4: Simplify right side
68,502.97x = 2,773,798,505.98 - Step 5: Solve for x
x = 2,773,798,505.98/68,502.97 - Step 6: Final answer
x = 40,491.66
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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.