Finding the Fourth Proportional to 98,857.06, 136,422.05 and 53,534.00
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Solution
The fourth proportional to 98,857.06, 136,422.05 and 53,534.00 is: 73,876.55
Step by Step Solution
- Step 1: Write the proportion equation
98,857.06 : 136,422.05 = 53,534.00 : x - Step 2: Convert to fraction form
98,857.06/136,422.05 = 53,534.00/x - Step 3: Cross multiply
98,857.06x = 136,422.05 × 53,534.00 - Step 4: Simplify right side
98,857.06x = 7,303,218,499.59 - Step 5: Solve for x
x = 7,303,218,499.59/98,857.06 - Step 6: Final answer
x = 73,876.55
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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.