Finding the Fourth Proportional to 115,117.80, 172,676.70 and 32,011.80
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Solution
The fourth proportional to 115,117.80, 172,676.70 and 32,011.80 is: 48,017.70
Step by Step Solution
- Step 1: Write the proportion equation
115,117.80 : 172,676.70 = 32,011.80 : x - Step 2: Convert to fraction form
115,117.80/172,676.70 = 32,011.80/x - Step 3: Cross multiply
115,117.80x = 172,676.70 × 32,011.80 - Step 4: Simplify right side
115,117.80x = 5,527,691,985.06 - Step 5: Solve for x
x = 5,527,691,985.06/115,117.80 - Step 6: Final answer
x = 48,017.70
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1.5x scale
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.