Finding the Fourth Proportional to 98,526.43, 135,917.76 and 58,220.70
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Solution
The fourth proportional to 98,526.43, 135,917.76 and 58,220.70 is: 80,315.78
Step by Step Solution
- Step 1: Write the proportion equation
98,526.43 : 135,917.76 = 58,220.70 : x - Step 2: Convert to fraction form
98,526.43/135,917.76 = 58,220.70/x - Step 3: Cross multiply
98,526.43x = 135,917.76 × 58,220.70 - Step 4: Simplify right side
98,526.43x = 7,913,227,129.63 - Step 5: Solve for x
x = 7,913,227,129.63/98,526.43 - Step 6: Final answer
x = 80,315.78
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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.