Finding the Fourth Proportional to 90,693.99, 136,087.06 and 40,764.03
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Solution
The fourth proportional to 90,693.99, 136,087.06 and 40,764.03 is: 61,166.75
Step by Step Solution
- Step 1: Write the proportion equation
90,693.99 : 136,087.06 = 40,764.03 : x - Step 2: Convert to fraction form
90,693.99/136,087.06 = 40,764.03/x - Step 3: Cross multiply
90,693.99x = 136,087.06 × 40,764.03 - Step 4: Simplify right side
90,693.99x = 5,547,456,214.11 - Step 5: Solve for x
x = 5,547,456,214.11/90,693.99 - Step 6: Final answer
x = 61,166.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.