Finding the Fourth Proportional to 84,558.80, 126,838.20 and 56,565.20
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Solution
The fourth proportional to 84,558.80, 126,838.20 and 56,565.20 is: 84,847.80
Step by Step Solution
- Step 1: Write the proportion equation
84,558.80 : 126,838.20 = 56,565.20 : x - Step 2: Convert to fraction form
84,558.80/126,838.20 = 56,565.20/x - Step 3: Cross multiply
84,558.80x = 126,838.20 × 56,565.20 - Step 4: Simplify right side
84,558.80x = 7,174,628,150.64 - Step 5: Solve for x
x = 7,174,628,150.64/84,558.80 - Step 6: Final answer
x = 84,847.80
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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.