Finding the Fourth Proportional to 88,287.84, 121,756.50 and 65,683.44
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Solution
The fourth proportional to 88,287.84, 121,756.50 and 65,683.44 is: 90,583.09
Step by Step Solution
- Step 1: Write the proportion equation
88,287.84 : 121,756.50 = 65,683.44 : x - Step 2: Convert to fraction form
88,287.84/121,756.50 = 65,683.44/x - Step 3: Cross multiply
88,287.84x = 121,756.50 × 65,683.44 - Step 4: Simplify right side
88,287.84x = 7,997,385,762.36 - Step 5: Solve for x
x = 7,997,385,762.36/88,287.84 - Step 6: Final answer
x = 90,583.09
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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.