Finding the Fourth Proportional to 97,778.87, 134,936.75 and 63,809.09
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Solution
The fourth proportional to 97,778.87, 134,936.75 and 63,809.09 is: 88,057.79
Step by Step Solution
- Step 1: Write the proportion equation
97,778.87 : 134,936.75 = 63,809.09 : x - Step 2: Convert to fraction form
97,778.87/134,936.75 = 63,809.09/x - Step 3: Cross multiply
97,778.87x = 134,936.75 × 63,809.09 - Step 4: Simplify right side
97,778.87x = 8,610,191,047.24 - Step 5: Solve for x
x = 8,610,191,047.24/97,778.87 - Step 6: Final answer
x = 88,057.79
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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.