Finding the Fourth Proportional to 98,003.70, 135,118.11 and 63,487.02
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Solution
The fourth proportional to 98,003.70, 135,118.11 and 63,487.02 is: 87,529.82
Step by Step Solution
- Step 1: Write the proportion equation
98,003.70 : 135,118.11 = 63,487.02 : x - Step 2: Convert to fraction form
98,003.70/135,118.11 = 63,487.02/x - Step 3: Cross multiply
98,003.70x = 135,118.11 × 63,487.02 - Step 4: Simplify right side
98,003.70x = 8,578,246,151.93 - Step 5: Solve for x
x = 8,578,246,151.93/98,003.70 - Step 6: Final answer
x = 87,529.82
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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.