Finding the Fourth Proportional to 87,909.48, 121,305.36 and 49,664.94
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Solution
The fourth proportional to 87,909.48, 121,305.36 and 49,664.94 is: 68,532.12
Step by Step Solution
- Step 1: Write the proportion equation
87,909.48 : 121,305.36 = 49,664.94 : x - Step 2: Convert to fraction form
87,909.48/121,305.36 = 49,664.94/x - Step 3: Cross multiply
87,909.48x = 121,305.36 × 49,664.94 - Step 4: Simplify right side
87,909.48x = 6,024,623,426.08 - Step 5: Solve for x
x = 6,024,623,426.08/87,909.48 - Step 6: Final answer
x = 68,532.12
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.