Finding the Fourth Proportional to 98,972.26, 136,590.36 and 54,268.90
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Solution
The fourth proportional to 98,972.26, 136,590.36 and 54,268.90 is: 74,895.82
Step by Step Solution
- Step 1: Write the proportion equation
98,972.26 : 136,590.36 = 54,268.90 : x - Step 2: Convert to fraction form
98,972.26/136,590.36 = 54,268.90/x - Step 3: Cross multiply
98,972.26x = 136,590.36 × 54,268.90 - Step 4: Simplify right side
98,972.26x = 7,412,608,587.80 - Step 5: Solve for x
x = 7,412,608,587.80/98,972.26 - Step 6: Final answer
x = 74,895.82
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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.