Finding the Fourth Proportional to 80,992.29, 121,487.92 and 43,569.98
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Solution
The fourth proportional to 80,992.29, 121,487.92 and 43,569.98 is: 65,354.70
Step by Step Solution
- Step 1: Write the proportion equation
80,992.29 : 121,487.92 = 43,569.98 : x - Step 2: Convert to fraction form
80,992.29/121,487.92 = 43,569.98/x - Step 3: Cross multiply
80,992.29x = 121,487.92 × 43,569.98 - Step 4: Simplify right side
80,992.29x = 5,293,226,667.23 - Step 5: Solve for x
x = 5,293,226,667.23/80,992.29 - Step 6: Final answer
x = 65,354.70
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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.