Finding the Fourth Proportional to 98,556.99, 136,008.78 and 56,115.54
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Solution
The fourth proportional to 98,556.99, 136,008.78 and 56,115.54 is: 77,439.52
Step by Step Solution
- Step 1: Write the proportion equation
98,556.99 : 136,008.78 = 56,115.54 : x - Step 2: Convert to fraction form
98,556.99/136,008.78 = 56,115.54/x - Step 3: Cross multiply
98,556.99x = 136,008.78 × 56,115.54 - Step 4: Simplify right side
98,556.99x = 7,632,206,134.44 - Step 5: Solve for x
x = 7,632,206,134.44/98,556.99 - Step 6: Final answer
x = 77,439.52
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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.