Finding the Fourth Proportional to 98,778.24, 136,306.24 and 56,334.08
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Solution
The fourth proportional to 98,778.24, 136,306.24 and 56,334.08 is: 77,736.62
Step by Step Solution
- Step 1: Write the proportion equation
98,778.24 : 136,306.24 = 56,334.08 : x - Step 2: Convert to fraction form
98,778.24/136,306.24 = 56,334.08/x - Step 3: Cross multiply
98,778.24x = 136,306.24 × 56,334.08 - Step 4: Simplify right side
98,778.24x = 7,678,686,628.66 - Step 5: Solve for x
x = 7,678,686,628.66/98,778.24 - Step 6: Final answer
x = 77,736.62
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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.