Finding the Fourth Proportional to 86,664.70, 119,652.87 and 70,787.26
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Solution
The fourth proportional to 86,664.70, 119,652.87 and 70,787.26 is: 97,731.82
Step by Step Solution
- Step 1: Write the proportion equation
86,664.70 : 119,652.87 = 70,787.26 : x - Step 2: Convert to fraction form
86,664.70/119,652.87 = 70,787.26/x - Step 3: Cross multiply
86,664.70x = 119,652.87 × 70,787.26 - Step 4: Simplify right side
86,664.70x = 8,469,898,818.44 - Step 5: Solve for x
x = 8,469,898,818.44/86,664.70 - Step 6: Final answer
x = 97,731.82
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1.5x scale
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.