Finding the Fourth Proportional to 69,607.20, 104,415.01 and 19,691.09
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Solution
The fourth proportional to 69,607.20, 104,415.01 and 19,691.09 is: 29,537.82
Step by Step Solution
- Step 1: Write the proportion equation
69,607.20 : 104,415.01 = 19,691.09 : x - Step 2: Convert to fraction form
69,607.20/104,415.01 = 19,691.09/x - Step 3: Cross multiply
69,607.20x = 104,415.01 × 19,691.09 - Step 4: Simplify right side
69,607.20x = 2,056,045,115.75 - Step 5: Solve for x
x = 2,056,045,115.75/69,607.20 - Step 6: Final answer
x = 29,537.82
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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.