Finding the Fourth Proportional to 88,293.36, 121,863.84 and 54,330.72
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Solution
The fourth proportional to 88,293.36, 121,863.84 and 54,330.72 is: 74,988.09
Step by Step Solution
- Step 1: Write the proportion equation
88,293.36 : 121,863.84 = 54,330.72 : x - Step 2: Convert to fraction form
88,293.36/121,863.84 = 54,330.72/x - Step 3: Cross multiply
88,293.36x = 121,863.84 × 54,330.72 - Step 4: Simplify right side
88,293.36x = 6,620,950,169.16 - Step 5: Solve for x
x = 6,620,950,169.16/88,293.36 - Step 6: Final answer
x = 74,988.09
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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.