Finding the Fourth Proportional to 91,009.56, 125,599.50 and 55,201.08
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Solution
The fourth proportional to 91,009.56, 125,599.50 and 55,201.08 is: 76,181.32
Step by Step Solution
- Step 1: Write the proportion equation
91,009.56 : 125,599.50 = 55,201.08 : x - Step 2: Convert to fraction form
91,009.56/125,599.50 = 55,201.08/x - Step 3: Cross multiply
91,009.56x = 125,599.50 × 55,201.08 - Step 4: Simplify right side
91,009.56x = 6,933,228,047.46 - Step 5: Solve for x
x = 6,933,228,047.46/91,009.56 - Step 6: Final answer
x = 76,181.32
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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.