Finding the Fourth Proportional to 69,972.36, 104,965.94 and 25,603.08
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Solution
The fourth proportional to 69,972.36, 104,965.94 and 25,603.08 is: 38,407.33
Step by Step Solution
- Step 1: Write the proportion equation
69,972.36 : 104,965.94 = 25,603.08 : x - Step 2: Convert to fraction form
69,972.36/104,965.94 = 25,603.08/x - Step 3: Cross multiply
69,972.36x = 104,965.94 × 25,603.08 - Step 4: Simplify right side
69,972.36x = 2,687,451,359.10 - Step 5: Solve for x
x = 2,687,451,359.10/69,972.36 - Step 6: Final answer
x = 38,407.33
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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.