Finding the Fourth Proportional to 98,648.08, 136,132.30 and 53,936.08
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Solution
The fourth proportional to 98,648.08, 136,132.30 and 53,936.08 is: 74,430.67
Step by Step Solution
- Step 1: Write the proportion equation
98,648.08 : 136,132.30 = 53,936.08 : x - Step 2: Convert to fraction form
98,648.08/136,132.30 = 53,936.08/x - Step 3: Cross multiply
98,648.08x = 136,132.30 × 53,936.08 - Step 4: Simplify right side
98,648.08x = 7,342,442,623.38 - Step 5: Solve for x
x = 7,342,442,623.38/98,648.08 - Step 6: Final answer
x = 74,430.67
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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.