Finding the Fourth Proportional to 98,722.44, 136,239.30 and 56,284.92
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Solution
The fourth proportional to 98,722.44, 136,239.30 and 56,284.92 is: 77,674.52
Step by Step Solution
- Step 1: Write the proportion equation
98,722.44 : 136,239.30 = 56,284.92 : x - Step 2: Convert to fraction form
98,722.44/136,239.30 = 56,284.92/x - Step 3: Cross multiply
98,722.44x = 136,239.30 × 56,284.92 - Step 4: Simplify right side
98,722.44x = 7,668,218,101.36 - Step 5: Solve for x
x = 7,668,218,101.36/98,722.44 - Step 6: Final answer
x = 77,674.52
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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.