Finding the Fourth Proportional to 98,916.19, 136,504.64 and 53,593.95
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Solution
The fourth proportional to 98,916.19, 136,504.64 and 53,593.95 is: 73,959.81
Step by Step Solution
- Step 1: Write the proportion equation
98,916.19 : 136,504.64 = 53,593.95 : x - Step 2: Convert to fraction form
98,916.19/136,504.64 = 53,593.95/x - Step 3: Cross multiply
98,916.19x = 136,504.64 × 53,593.95 - Step 4: Simplify right side
98,916.19x = 7,315,822,850.93 - Step 5: Solve for x
x = 7,315,822,850.93/98,916.19 - Step 6: Final answer
x = 73,959.81
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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.