Finding the Fourth Proportional to 110,278.08, 165,418.12 and 31,392.28
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Solution
The fourth proportional to 110,278.08, 165,418.12 and 31,392.28 is: 47,088.70
Step by Step Solution
- Step 1: Write the proportion equation
110,278.08 : 165,418.12 = 31,392.28 : x - Step 2: Convert to fraction form
110,278.08/165,418.12 = 31,392.28/x - Step 3: Cross multiply
110,278.08x = 165,418.12 × 31,392.28 - Step 4: Simplify right side
110,278.08x = 5,192,851,940.11 - Step 5: Solve for x
x = 5,192,851,940.11/110,278.08 - Step 6: Final answer
x = 47,088.70
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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.