Finding the Fourth Proportional to 98,881.08, 136,455.83 and 53,559.95
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Solution
The fourth proportional to 98,881.08, 136,455.83 and 53,559.95 is: 73,912.70
Step by Step Solution
- Step 1: Write the proportion equation
98,881.08 : 136,455.83 = 53,559.95 : x - Step 2: Convert to fraction form
98,881.08/136,455.83 = 53,559.95/x - Step 3: Cross multiply
98,881.08x = 136,455.83 × 53,559.95 - Step 4: Simplify right side
98,881.08x = 7,308,567,432.01 - Step 5: Solve for x
x = 7,308,567,432.01/98,881.08 - Step 6: Final answer
x = 73,912.70
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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.