Finding the Fourth Proportional to 87,848.70, 121,231.26 and 47,562.81
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Solution
The fourth proportional to 87,848.70, 121,231.26 and 47,562.81 is: 65,636.71
Step by Step Solution
- Step 1: Write the proportion equation
87,848.70 : 121,231.26 = 47,562.81 : x - Step 2: Convert to fraction form
87,848.70/121,231.26 = 47,562.81/x - Step 3: Cross multiply
87,848.70x = 121,231.26 × 47,562.81 - Step 4: Simplify right side
87,848.70x = 5,766,099,385.44 - Step 5: Solve for x
x = 5,766,099,385.44/87,848.70 - Step 6: Final answer
x = 65,636.71
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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.