Finding the Fourth Proportional to 98,515.54, 135,941.62 and 55,493.83
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Solution
The fourth proportional to 98,515.54, 135,941.62 and 55,493.83 is: 76,575.95
Step by Step Solution
- Step 1: Write the proportion equation
98,515.54 : 135,941.62 = 55,493.83 : x - Step 2: Convert to fraction form
98,515.54/135,941.62 = 55,493.83/x - Step 3: Cross multiply
98,515.54x = 135,941.62 × 55,493.83 - Step 4: Simplify right side
98,515.54x = 7,543,921,150.20 - Step 5: Solve for x
x = 7,543,921,150.20/98,515.54 - Step 6: Final answer
x = 76,575.95
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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.