Finding the Fourth Proportional to 74,572.49, 102,910.05 and 41,038.49
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Solution
The fourth proportional to 74,572.49, 102,910.05 and 41,038.49 is: 56,633.12
Step by Step Solution
- Step 1: Write the proportion equation
74,572.49 : 102,910.05 = 41,038.49 : x - Step 2: Convert to fraction form
74,572.49/102,910.05 = 41,038.49/x - Step 3: Cross multiply
74,572.49x = 102,910.05 × 41,038.49 - Step 4: Simplify right side
74,572.49x = 4,223,272,338.08 - Step 5: Solve for x
x = 4,223,272,338.08/74,572.49 - Step 6: Final answer
x = 56,633.12
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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.