Finding the Fourth Proportional to 97,843.64, 135,024.74 and 55,410.44
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Solution
The fourth proportional to 97,843.64, 135,024.74 and 55,410.44 is: 76,466.70
Step by Step Solution
- Step 1: Write the proportion equation
97,843.64 : 135,024.74 = 55,410.44 : x - Step 2: Convert to fraction form
97,843.64/135,024.74 = 55,410.44/x - Step 3: Cross multiply
97,843.64x = 135,024.74 × 55,410.44 - Step 4: Simplify right side
97,843.64x = 7,481,780,254.29 - Step 5: Solve for x
x = 7,481,780,254.29/97,843.64 - Step 6: Final answer
x = 76,466.70
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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.