Finding the Fourth Proportional to 98,917.68, 136,506.20 and 53,596.81
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Solution
The fourth proportional to 98,917.68, 136,506.20 and 53,596.81 is: 73,963.48
Step by Step Solution
- Step 1: Write the proportion equation
98,917.68 : 136,506.20 = 53,596.81 : x - Step 2: Convert to fraction form
98,917.68/136,506.20 = 53,596.81/x - Step 3: Cross multiply
98,917.68x = 136,506.20 × 53,596.81 - Step 4: Simplify right side
98,917.68x = 7,316,296,255.97 - Step 5: Solve for x
x = 7,316,296,255.97/98,917.68 - Step 6: Final answer
x = 73,963.48
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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.