Finding the Fourth Proportional to 112,776.05, 169,201.85 and 36,878.09
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Solution
The fourth proportional to 112,776.05, 169,201.85 and 36,878.09 is: 55,329.49
Step by Step Solution
- Step 1: Write the proportion equation
112,776.05 : 169,201.85 = 36,878.09 : x - Step 2: Convert to fraction form
112,776.05/169,201.85 = 36,878.09/x - Step 3: Cross multiply
112,776.05x = 169,201.85 × 36,878.09 - Step 4: Simplify right side
112,776.05x = 6,239,841,449.71 - Step 5: Solve for x
x = 6,239,841,449.71/112,776.05 - Step 6: Final answer
x = 55,329.49
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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.