Finding the Fourth Proportional to 98,100.23, 135,374.24 and 55,661.09
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Solution
The fourth proportional to 98,100.23, 135,374.24 and 55,661.09 is: 76,809.99
Step by Step Solution
- Step 1: Write the proportion equation
98,100.23 : 135,374.24 = 55,661.09 : x - Step 2: Convert to fraction form
98,100.23/135,374.24 = 55,661.09/x - Step 3: Cross multiply
98,100.23x = 135,374.24 × 55,661.09 - Step 4: Simplify right side
98,100.23x = 7,535,077,478.02 - Step 5: Solve for x
x = 7,535,077,478.02/98,100.23 - Step 6: Final answer
x = 76,809.99
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1.5x scale
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.