Finding the Fourth Proportional to 88,331.11, 121,869.66 and 53,883.12
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Solution
The fourth proportional to 88,331.11, 121,869.66 and 53,883.12 is: 74,342.08
Step by Step Solution
- Step 1: Write the proportion equation
88,331.11 : 121,869.66 = 53,883.12 : x - Step 2: Convert to fraction form
88,331.11/121,869.66 = 53,883.12/x - Step 3: Cross multiply
88,331.11x = 121,869.66 × 53,883.12 - Step 4: Simplify right side
88,331.11x = 6,566,718,173.21 - Step 5: Solve for x
x = 6,566,718,173.21/88,331.11 - Step 6: Final answer
x = 74,342.08
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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.