Finding the Fourth Proportional to 84,863.16, 127,289.88 and 28,684.26
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Solution
The fourth proportional to 84,863.16, 127,289.88 and 28,684.26 is: 43,024.75
Step by Step Solution
- Step 1: Write the proportion equation
84,863.16 : 127,289.88 = 28,684.26 : x - Step 2: Convert to fraction form
84,863.16/127,289.88 = 28,684.26/x - Step 3: Cross multiply
84,863.16x = 127,289.88 × 28,684.26 - Step 4: Simplify right side
84,863.16x = 3,651,216,013.29 - Step 5: Solve for x
x = 3,651,216,013.29/84,863.16 - Step 6: Final answer
x = 43,024.75
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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.