Finding the Fourth Proportional to 74,261.98, 102,528.12 and 51,593.68
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Solution
The fourth proportional to 74,261.98, 102,528.12 and 51,593.68 is: 71,231.65
Step by Step Solution
- Step 1: Write the proportion equation
74,261.98 : 102,528.12 = 51,593.68 : x - Step 2: Convert to fraction form
74,261.98/102,528.12 = 51,593.68/x - Step 3: Cross multiply
74,261.98x = 102,528.12 × 51,593.68 - Step 4: Simplify right side
74,261.98x = 5,289,803,014.28 - Step 5: Solve for x
x = 5,289,803,014.28/74,261.98 - Step 6: Final answer
x = 71,231.65
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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.