Finding the Fourth Proportional to 98,751.24, 136,279.10 and 56,310.48
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Solution
The fourth proportional to 98,751.24, 136,279.10 and 56,310.48 is: 77,709.82
Step by Step Solution
- Step 1: Write the proportion equation
98,751.24 : 136,279.10 = 56,310.48 : x - Step 2: Convert to fraction form
98,751.24/136,279.10 = 56,310.48/x - Step 3: Cross multiply
98,751.24x = 136,279.10 × 56,310.48 - Step 4: Simplify right side
98,751.24x = 7,673,941,534.97 - Step 5: Solve for x
x = 7,673,941,534.97/98,751.24 - Step 6: Final answer
x = 77,709.82
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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.