Finding the Fourth Proportional to 98,863.06, 136,427.88 and 58,577.08
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Solution
The fourth proportional to 98,863.06, 136,427.88 and 58,577.08 is: 80,834.51
Step by Step Solution
- Step 1: Write the proportion equation
98,863.06 : 136,427.88 = 58,577.08 : x - Step 2: Convert to fraction form
98,863.06/136,427.88 = 58,577.08/x - Step 3: Cross multiply
98,863.06x = 136,427.88 × 58,577.08 - Step 4: Simplify right side
98,863.06x = 7,991,546,840.99 - Step 5: Solve for x
x = 7,991,546,840.99/98,863.06 - Step 6: Final answer
x = 80,834.51
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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.