Finding the Fourth Proportional to 89,968.48, 134,971.74 and 33,809.08
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Solution
The fourth proportional to 89,968.48, 134,971.74 and 33,809.08 is: 50,720.77
Step by Step Solution
- Step 1: Write the proportion equation
89,968.48 : 134,971.74 = 33,809.08 : x - Step 2: Convert to fraction form
89,968.48/134,971.74 = 33,809.08/x - Step 3: Cross multiply
89,968.48x = 134,971.74 × 33,809.08 - Step 4: Simplify right side
89,968.48x = 4,563,270,355.40 - Step 5: Solve for x
x = 4,563,270,355.40/89,968.48 - Step 6: Final answer
x = 50,720.77
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1.5x scale
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.