Finding the Fourth Proportional to 98,981.68, 136,562.60 and 55,957.01
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Solution
The fourth proportional to 98,981.68, 136,562.60 and 55,957.01 is: 77,202.52
Step by Step Solution
- Step 1: Write the proportion equation
98,981.68 : 136,562.60 = 55,957.01 : x - Step 2: Convert to fraction form
98,981.68/136,562.60 = 55,957.01/x - Step 3: Cross multiply
98,981.68x = 136,562.60 × 55,957.01 - Step 4: Simplify right side
98,981.68x = 7,641,635,255.13 - Step 5: Solve for x
x = 7,641,635,255.13/98,981.68 - Step 6: Final answer
x = 77,202.52
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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.