Finding the Fourth Proportional to 98,510.63, 135,947.93 and 53,798.63
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Solution
The fourth proportional to 98,510.63, 135,947.93 and 53,798.63 is: 74,243.88
Step by Step Solution
- Step 1: Write the proportion equation
98,510.63 : 135,947.93 = 53,798.63 : x - Step 2: Convert to fraction form
98,510.63/135,947.93 = 53,798.63/x - Step 3: Cross multiply
98,510.63x = 135,947.93 × 53,798.63 - Step 4: Simplify right side
98,510.63x = 7,313,811,436.60 - Step 5: Solve for x
x = 7,313,811,436.60/98,510.63 - Step 6: Final answer
x = 74,243.88
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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.