Finding the Fourth Proportional to 69,897.60, 104,758.97 and 55,047.87
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Solution
The fourth proportional to 69,897.60, 104,758.97 and 55,047.87 is: 82,502.95
Step by Step Solution
- Step 1: Write the proportion equation
69,897.60 : 104,758.97 = 55,047.87 : x - Step 2: Convert to fraction form
69,897.60/104,758.97 = 55,047.87/x - Step 3: Cross multiply
69,897.60x = 104,758.97 × 55,047.87 - Step 4: Simplify right side
69,897.60x = 5,766,757,886.65 - Step 5: Solve for x
x = 5,766,757,886.65/69,897.60 - Step 6: Final answer
x = 82,502.95
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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.