Finding the Fourth Proportional to 77,884.80, 116,827.20 and 58,201.80
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Solution
The fourth proportional to 77,884.80, 116,827.20 and 58,201.80 is: 87,302.70
Step by Step Solution
- Step 1: Write the proportion equation
77,884.80 : 116,827.20 = 58,201.80 : x - Step 2: Convert to fraction form
77,884.80/116,827.20 = 58,201.80/x - Step 3: Cross multiply
77,884.80x = 116,827.20 × 58,201.80 - Step 4: Simplify right side
77,884.80x = 6,799,553,328.96 - Step 5: Solve for x
x = 6,799,553,328.96/77,884.80 - Step 6: Final answer
x = 87,302.70
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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.