Finding the Fourth Proportional to 84,916.68, 117,186.12 and 49,108.20
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Solution
The fourth proportional to 84,916.68, 117,186.12 and 49,108.20 is: 67,769.95
Step by Step Solution
- Step 1: Write the proportion equation
84,916.68 : 117,186.12 = 49,108.20 : x - Step 2: Convert to fraction form
84,916.68/117,186.12 = 49,108.20/x - Step 3: Cross multiply
84,916.68x = 117,186.12 × 49,108.20 - Step 4: Simplify right side
84,916.68x = 5,754,799,418.18 - Step 5: Solve for x
x = 5,754,799,418.18/84,916.68 - Step 6: Final answer
x = 67,769.95
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1.5x scale
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.