Finding the Fourth Proportional to 97,840.88, 135,020.94 and 55,407.68
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Solution
The fourth proportional to 97,840.88, 135,020.94 and 55,407.68 is: 76,462.90
Step by Step Solution
- Step 1: Write the proportion equation
97,840.88 : 135,020.94 = 55,407.68 : x - Step 2: Convert to fraction form
97,840.88/135,020.94 = 55,407.68/x - Step 3: Cross multiply
97,840.88x = 135,020.94 × 55,407.68 - Step 4: Simplify right side
97,840.88x = 7,481,197,036.82 - Step 5: Solve for x
x = 7,481,197,036.82/97,840.88 - Step 6: Final answer
x = 76,462.90
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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.