Finding the Fourth Proportional to 74,012.06, 102,153.05 and 51,074.08
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Solution
The fourth proportional to 74,012.06, 102,153.05 and 51,074.08 is: 70,493.55
Step by Step Solution
- Step 1: Write the proportion equation
74,012.06 : 102,153.05 = 51,074.08 : x - Step 2: Convert to fraction form
74,012.06/102,153.05 = 51,074.08/x - Step 3: Cross multiply
74,012.06x = 102,153.05 × 51,074.08 - Step 4: Simplify right side
74,012.06x = 5,217,372,728.72 - Step 5: Solve for x
x = 5,217,372,728.72/74,012.06 - Step 6: Final answer
x = 70,493.55
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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.