Finding the Fourth Proportional to 98,544.36, 135,991.35 and 56,102.90
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Solution
The fourth proportional to 98,544.36, 135,991.35 and 56,102.90 is: 77,422.07
Step by Step Solution
- Step 1: Write the proportion equation
98,544.36 : 135,991.35 = 56,102.90 : x - Step 2: Convert to fraction form
98,544.36/135,991.35 = 56,102.90/x - Step 3: Cross multiply
98,544.36x = 135,991.35 × 56,102.90 - Step 4: Simplify right side
98,544.36x = 7,629,508,429.96 - Step 5: Solve for x
x = 7,629,508,429.96/98,544.36 - Step 6: Final answer
x = 77,422.07
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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.