Finding the Fourth Proportional to 84,421.76, 116,504.91 and 48,128.57
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Solution
The fourth proportional to 84,421.76, 116,504.91 and 48,128.57 is: 66,419.07
Step by Step Solution
- Step 1: Write the proportion equation
84,421.76 : 116,504.91 = 48,128.57 : x - Step 2: Convert to fraction form
84,421.76/116,504.91 = 48,128.57/x - Step 3: Cross multiply
84,421.76x = 116,504.91 × 48,128.57 - Step 4: Simplify right side
84,421.76x = 5,607,215,280.60 - Step 5: Solve for x
x = 5,607,215,280.60/84,421.76 - Step 6: Final answer
x = 66,419.07
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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.