Finding the Fourth Proportional to 90,102.06, 124,329.99 and 49,810.38
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Solution
The fourth proportional to 90,102.06, 124,329.99 and 49,810.38 is: 68,732.32
Step by Step Solution
- Step 1: Write the proportion equation
90,102.06 : 124,329.99 = 49,810.38 : x - Step 2: Convert to fraction form
90,102.06/124,329.99 = 49,810.38/x - Step 3: Cross multiply
90,102.06x = 124,329.99 × 49,810.38 - Step 4: Simplify right side
90,102.06x = 6,192,924,047.30 - Step 5: Solve for x
x = 6,192,924,047.30/90,102.06 - Step 6: Final answer
x = 68,732.32
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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.