Finding the Fourth Proportional to 74,883.49, 103,343.41 and 40,895.12
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Solution
The fourth proportional to 74,883.49, 103,343.41 and 40,895.12 is: 56,437.56
Step by Step Solution
- Step 1: Write the proportion equation
74,883.49 : 103,343.41 = 40,895.12 : x - Step 2: Convert to fraction form
74,883.49/103,343.41 = 40,895.12/x - Step 3: Cross multiply
74,883.49x = 103,343.41 × 40,895.12 - Step 4: Simplify right side
74,883.49x = 4,226,241,462.64 - Step 5: Solve for x
x = 4,226,241,462.64/74,883.49 - Step 6: Final answer
x = 56,437.56
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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.