Finding the Fourth Proportional to 112,386.06, 168,662.04 and 53,221.62
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Solution
The fourth proportional to 112,386.06, 168,662.04 and 53,221.62 is: 79,871.71
Step by Step Solution
- Step 1: Write the proportion equation
112,386.06 : 168,662.04 = 53,221.62 : x - Step 2: Convert to fraction form
112,386.06/168,662.04 = 53,221.62/x - Step 3: Cross multiply
112,386.06x = 168,662.04 × 53,221.62 - Step 4: Simplify right side
112,386.06x = 8,976,467,001.30 - Step 5: Solve for x
x = 8,976,467,001.30/112,386.06 - Step 6: Final answer
x = 79,871.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.