Finding the Fourth Proportional to 87,774.88, 121,080.08 and 53,799.84
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Solution
The fourth proportional to 87,774.88, 121,080.08 and 53,799.84 is: 74,213.59
Step by Step Solution
- Step 1: Write the proportion equation
87,774.88 : 121,080.08 = 53,799.84 : x - Step 2: Convert to fraction form
87,774.88/121,080.08 = 53,799.84/x - Step 3: Cross multiply
87,774.88x = 121,080.08 × 53,799.84 - Step 4: Simplify right side
87,774.88x = 6,514,088,931.19 - Step 5: Solve for x
x = 6,514,088,931.19/87,774.88 - Step 6: Final answer
x = 74,213.59
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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.