Finding the Fourth Proportional to 84,253.10, 126,317.14 and 39,827.90
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Solution
The fourth proportional to 84,253.10, 126,317.14 and 39,827.90 is: 59,712.31
Step by Step Solution
- Step 1: Write the proportion equation
84,253.10 : 126,317.14 = 39,827.90 : x - Step 2: Convert to fraction form
84,253.10/126,317.14 = 39,827.90/x - Step 3: Cross multiply
84,253.10x = 126,317.14 × 39,827.90 - Step 4: Simplify right side
84,253.10x = 5,030,946,636.43 - Step 5: Solve for x
x = 5,030,946,636.43/84,253.10 - Step 6: Final answer
x = 59,712.31
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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.