Finding the Fourth Proportional to 112,431.62, 168,628.96 and 40,369.62
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Solution
The fourth proportional to 112,431.62, 168,628.96 and 40,369.62 is: 60,547.80
Step by Step Solution
- Step 1: Write the proportion equation
112,431.62 : 168,628.96 = 40,369.62 : x - Step 2: Convert to fraction form
112,431.62/168,628.96 = 40,369.62/x - Step 3: Cross multiply
112,431.62x = 168,628.96 × 40,369.62 - Step 4: Simplify right side
112,431.62x = 6,807,487,036.20 - Step 5: Solve for x
x = 6,807,487,036.20/112,431.62 - Step 6: Final answer
x = 60,547.80
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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.