Finding the Fourth Proportional to 91,843.99, 126,742.84 and 51,005.95
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Solution
The fourth proportional to 91,843.99, 126,742.84 and 51,005.95 is: 70,387.17
Step by Step Solution
- Step 1: Write the proportion equation
91,843.99 : 126,742.84 = 51,005.95 : x - Step 2: Convert to fraction form
91,843.99/126,742.84 = 51,005.95/x - Step 3: Cross multiply
91,843.99x = 126,742.84 × 51,005.95 - Step 4: Simplify right side
91,843.99x = 6,464,638,959.90 - Step 5: Solve for x
x = 6,464,638,959.90/91,843.99 - Step 6: Final answer
x = 70,387.17
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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.