Finding the Fourth Proportional to 90,250.17, 124,543.74 and 49,963.06
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Solution
The fourth proportional to 90,250.17, 124,543.74 and 49,963.06 is: 68,948.20
Step by Step Solution
- Step 1: Write the proportion equation
90,250.17 : 124,543.74 = 49,963.06 : x - Step 2: Convert to fraction form
90,250.17/124,543.74 = 49,963.06/x - Step 3: Cross multiply
90,250.17x = 124,543.74 × 49,963.06 - Step 4: Simplify right side
90,250.17x = 6,222,586,354.24 - Step 5: Solve for x
x = 6,222,586,354.24/90,250.17 - Step 6: Final answer
x = 68,948.20
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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.