Finding the Fourth Proportional to 98,764.09, 136,296.21 and 55,752.19
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Solution
The fourth proportional to 98,764.09, 136,296.21 and 55,752.19 is: 76,939.02
Step by Step Solution
- Step 1: Write the proportion equation
98,764.09 : 136,296.21 = 55,752.19 : x - Step 2: Convert to fraction form
98,764.09/136,296.21 = 55,752.19/x - Step 3: Cross multiply
98,764.09x = 136,296.21 × 55,752.19 - Step 4: Simplify right side
98,764.09x = 7,598,812,196.20 - Step 5: Solve for x
x = 7,598,812,196.20/98,764.09 - Step 6: Final answer
x = 76,939.02
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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.