Finding the Fourth Proportional to 74,351.08, 102,603.54 and 40,817.08
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Solution
The fourth proportional to 74,351.08, 102,603.54 and 40,817.08 is: 56,327.05
Step by Step Solution
- Step 1: Write the proportion equation
74,351.08 : 102,603.54 = 40,817.08 : x - Step 2: Convert to fraction form
74,351.08/102,603.54 = 40,817.08/x - Step 3: Cross multiply
74,351.08x = 102,603.54 × 40,817.08 - Step 4: Simplify right side
74,351.08x = 4,187,976,900.46 - Step 5: Solve for x
x = 4,187,976,900.46/74,351.08 - Step 6: Final answer
x = 56,327.05
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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.