Finding the Fourth Proportional to 71,585.16, 107,377.62 and 18,277.12
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Solution
The fourth proportional to 71,585.16, 107,377.62 and 18,277.12 is: 27,415.65
Step by Step Solution
- Step 1: Write the proportion equation
71,585.16 : 107,377.62 = 18,277.12 : x - Step 2: Convert to fraction form
71,585.16/107,377.62 = 18,277.12/x - Step 3: Cross multiply
71,585.16x = 107,377.62 × 18,277.12 - Step 4: Simplify right side
71,585.16x = 1,962,553,646.05 - Step 5: Solve for x
x = 1,962,553,646.05/71,585.16 - Step 6: Final answer
x = 27,415.65
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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.