Finding the Fourth Proportional to 74,224.53, 102,351.74 and 56,117.79
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Solution
The fourth proportional to 74,224.53, 102,351.74 and 56,117.79 is: 77,383.49
Step by Step Solution
- Step 1: Write the proportion equation
74,224.53 : 102,351.74 = 56,117.79 : x - Step 2: Convert to fraction form
74,224.53/102,351.74 = 56,117.79/x - Step 3: Cross multiply
74,224.53x = 102,351.74 × 56,117.79 - Step 4: Simplify right side
74,224.53x = 5,743,753,170.87 - Step 5: Solve for x
x = 5,743,753,170.87/74,224.53 - Step 6: Final answer
x = 77,383.49
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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.