Finding the Fourth Proportional to 98,713.08, 136,223.64 and 53,391.12
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Solution
The fourth proportional to 98,713.08, 136,223.64 and 53,391.12 is: 73,679.52
Step by Step Solution
- Step 1: Write the proportion equation
98,713.08 : 136,223.64 = 53,391.12 : x - Step 2: Convert to fraction form
98,713.08/136,223.64 = 53,391.12/x - Step 3: Cross multiply
98,713.08x = 136,223.64 × 53,391.12 - Step 4: Simplify right side
98,713.08x = 7,273,132,710.08 - Step 5: Solve for x
x = 7,273,132,710.08/98,713.08 - Step 6: Final answer
x = 73,679.52
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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.